Home / 527,403.59-727,820.45-285,686.16

Finding the Fourth Proportional to 527,403.59, 727,820.45 and 285,686.16

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Solution

The fourth proportional to 527,403.59, 727,820.45 and 285,686.16 is: 394,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,403.59 : 727,820.45 = 285,686.16 : x
  2. Step 2: Convert to fraction form
    527,403.59/727,820.45 = 285,686.16/x
  3. Step 3: Cross multiply
    527,403.59x = 727,820.45 × 285,686.16
  4. Step 4: Simplify right side
    527,403.59x = 207,928,231,349.52
  5. Step 5: Solve for x
    x = 207,928,231,349.52/527,403.59
  6. Step 6: Final answer
    x = 394,248.80

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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.