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Finding the Fourth Proportional to 475,240.40, 711,996.60 and 376,053.20

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Solution

The fourth proportional to 475,240.40, 711,996.60 and 376,053.20 is: 563,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,240.40 : 711,996.60 = 376,053.20 : x
  2. Step 2: Convert to fraction form
    475,240.40/711,996.60 = 376,053.20/x
  3. Step 3: Cross multiply
    475,240.40x = 711,996.60 × 376,053.20
  4. Step 4: Simplify right side
    475,240.40x = 267,748,599,819.12
  5. Step 5: Solve for x
    x = 267,748,599,819.12/475,240.40
  6. Step 6: Final answer
    x = 563,396.13

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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.