Home / 987,397.20-1,362,608.11-534,688.20

Finding the Fourth Proportional to 987,397.20, 1,362,608.11 and 534,688.20

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Solution

The fourth proportional to 987,397.20, 1,362,608.11 and 534,688.20 is: 737,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,397.20 : 1,362,608.11 = 534,688.20 : x
  2. Step 2: Convert to fraction form
    987,397.20/1,362,608.11 = 534,688.20/x
  3. Step 3: Cross multiply
    987,397.20x = 1,362,608.11 × 534,688.20
  4. Step 4: Simplify right side
    987,397.20x = 728,570,477,641.30
  5. Step 5: Solve for x
    x = 728,570,477,641.30/987,397.20
  6. Step 6: Final answer
    x = 737,869.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.