Home / 627,321,310.30-940,981,965.45-577,156,779.10

Finding the Fourth Proportional to 627,321,310.30, 940,981,965.45 and 577,156,779.10

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Solution

The fourth proportional to 627,321,310.30, 940,981,965.45 and 577,156,779.10 is: 865,735,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,321,310.30 : 940,981,965.45 = 577,156,779.10 : x
  2. Step 2: Convert to fraction form
    627,321,310.30/940,981,965.45 = 577,156,779.10/x
  3. Step 3: Cross multiply
    627,321,310.30x = 940,981,965.45 × 577,156,779.10
  4. Step 4: Simplify right side
    627,321,310.30x = 543,094,120,370,309,504
  5. Step 5: Solve for x
    x = 543,094,120,370,309,504/627,321,310.30
  6. Step 6: Final answer
    x = 865,735,168.65

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Half scale
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Double scale
Find fourth proportional to 627,321,311.30, 940,981,966.95 and 577,156,780.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.