Home / 527,061.72-727,340.13-285,338.10

Finding the Fourth Proportional to 527,061.72, 727,340.13 and 285,338.10

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Solution

The fourth proportional to 527,061.72, 727,340.13 and 285,338.10 is: 393,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,061.72 : 727,340.13 = 285,338.10 : x
  2. Step 2: Convert to fraction form
    527,061.72/727,340.13 = 285,338.10/x
  3. Step 3: Cross multiply
    527,061.72x = 727,340.13 × 285,338.10
  4. Step 4: Simplify right side
    527,061.72x = 207,537,850,747.95
  5. Step 5: Solve for x
    x = 207,537,850,747.95/527,061.72
  6. Step 6: Final answer
    x = 393,763.85

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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.