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Finding the Fourth Proportional to 425,227.40, 637,841.10 and 247,934.60

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Solution

The fourth proportional to 425,227.40, 637,841.10 and 247,934.60 is: 371,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,227.40 : 637,841.10 = 247,934.60 : x
  2. Step 2: Convert to fraction form
    425,227.40/637,841.10 = 247,934.60/x
  3. Step 3: Cross multiply
    425,227.40x = 637,841.10 × 247,934.60
  4. Step 4: Simplify right side
    425,227.40x = 158,142,877,992.06
  5. Step 5: Solve for x
    x = 158,142,877,992.06/425,227.40
  6. Step 6: Final answer
    x = 371,901.90

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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.