Home / 814,500.10-1,221,750.15-514,006.30

Finding the Fourth Proportional to 814,500.10, 1,221,750.15 and 514,006.30

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Solution

The fourth proportional to 814,500.10, 1,221,750.15 and 514,006.30 is: 771,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,500.10 : 1,221,750.15 = 514,006.30 : x
  2. Step 2: Convert to fraction form
    814,500.10/1,221,750.15 = 514,006.30/x
  3. Step 3: Cross multiply
    814,500.10x = 1,221,750.15 × 514,006.30
  4. Step 4: Simplify right side
    814,500.10x = 627,987,274,125.95
  5. Step 5: Solve for x
    x = 627,987,274,125.95/814,500.10
  6. Step 6: Final answer
    x = 771,009.45

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Double scale
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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.