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Finding the Fourth Proportional to 527,812.80, 728,479.17 and 301,458.30

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Solution

The fourth proportional to 527,812.80, 728,479.17 and 301,458.30 is: 416,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,812.80 : 728,479.17 = 301,458.30 : x
  2. Step 2: Convert to fraction form
    527,812.80/728,479.17 = 301,458.30/x
  3. Step 3: Cross multiply
    527,812.80x = 728,479.17 × 301,458.30
  4. Step 4: Simplify right side
    527,812.80x = 219,606,092,173.61
  5. Step 5: Solve for x
    x = 219,606,092,173.61/527,812.80
  6. Step 6: Final answer
    x = 416,068.14

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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.