Home / 527,276.40-727,637.78-285,553.44

Finding the Fourth Proportional to 527,276.40, 727,637.78 and 285,553.44

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Solution

The fourth proportional to 527,276.40, 727,637.78 and 285,553.44 is: 394,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,276.40 : 727,637.78 = 285,553.44 : x
  2. Step 2: Convert to fraction form
    527,276.40/727,637.78 = 285,553.44/x
  3. Step 3: Cross multiply
    527,276.40x = 727,637.78 × 285,553.44
  4. Step 4: Simplify right side
    527,276.40x = 207,779,469,725.20
  5. Step 5: Solve for x
    x = 207,779,469,725.20/527,276.40
  6. Step 6: Final answer
    x = 394,061.77

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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.