Home / 989,205.30-1,483,807.95-930,156.30

Finding the Fourth Proportional to 989,205.30, 1,483,807.95 and 930,156.30

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Solution

The fourth proportional to 989,205.30, 1,483,807.95 and 930,156.30 is: 1,395,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,205.30 : 1,483,807.95 = 930,156.30 : x
  2. Step 2: Convert to fraction form
    989,205.30/1,483,807.95 = 930,156.30/x
  3. Step 3: Cross multiply
    989,205.30x = 1,483,807.95 × 930,156.30
  4. Step 4: Simplify right side
    989,205.30x = 1,380,173,312,682.59
  5. Step 5: Solve for x
    x = 1,380,173,312,682.59/989,205.30
  6. Step 6: Final answer
    x = 1,395,234.45

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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.