Home / 527,384.10-727,789.72-285,666.12

Finding the Fourth Proportional to 527,384.10, 727,789.72 and 285,666.12

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Solution

The fourth proportional to 527,384.10, 727,789.72 and 285,666.12 is: 394,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,384.10 : 727,789.72 = 285,666.12 : x
  2. Step 2: Convert to fraction form
    527,384.10/727,789.72 = 285,666.12/x
  3. Step 3: Cross multiply
    527,384.10x = 727,789.72 × 285,666.12
  4. Step 4: Simplify right side
    527,384.10x = 207,904,865,488.29
  5. Step 5: Solve for x
    x = 207,904,865,488.29/527,384.10
  6. Step 6: Final answer
    x = 394,219.06

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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.