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Finding the Fourth Proportional to 624,018.70, 935,276.10 and 286,593.76

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Solution

The fourth proportional to 624,018.70, 935,276.10 and 286,593.76 is: 429,545.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,018.70 : 935,276.10 = 286,593.76 : x
  2. Step 2: Convert to fraction form
    624,018.70/935,276.10 = 286,593.76/x
  3. Step 3: Cross multiply
    624,018.70x = 935,276.10 × 286,593.76
  4. Step 4: Simplify right side
    624,018.70x = 268,044,294,137.14
  5. Step 5: Solve for x
    x = 268,044,294,137.14/624,018.70
  6. Step 6: Final answer
    x = 429,545.29

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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.