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Finding the Fourth Proportional to 527,165.40, 790,553.70 and 260,837.40

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Solution

The fourth proportional to 527,165.40, 790,553.70 and 260,837.40 is: 391,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,165.40 : 790,553.70 = 260,837.40 : x
  2. Step 2: Convert to fraction form
    527,165.40/790,553.70 = 260,837.40/x
  3. Step 3: Cross multiply
    527,165.40x = 790,553.70 × 260,837.40
  4. Step 4: Simplify right side
    527,165.40x = 206,205,971,668.38
  5. Step 5: Solve for x
    x = 206,205,971,668.38/527,165.40
  6. Step 6: Final answer
    x = 391,159.91

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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.