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Finding the Fourth Proportional to 527,209.60, 790,814.40 and 502,715.20

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Solution

The fourth proportional to 527,209.60, 790,814.40 and 502,715.20 is: 754,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,209.60 : 790,814.40 = 502,715.20 : x
  2. Step 2: Convert to fraction form
    527,209.60/790,814.40 = 502,715.20/x
  3. Step 3: Cross multiply
    527,209.60x = 790,814.40 × 502,715.20
  4. Step 4: Simplify right side
    527,209.60x = 397,554,419,258.88
  5. Step 5: Solve for x
    x = 397,554,419,258.88/527,209.60
  6. Step 6: Final answer
    x = 754,072.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.