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Finding the Fourth Proportional to 663,606.83, 915,737.96 and 377,087.15

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Solution

The fourth proportional to 663,606.83, 915,737.96 and 377,087.15 is: 520,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,606.83 : 915,737.96 = 377,087.15 : x
  2. Step 2: Convert to fraction form
    663,606.83/915,737.96 = 377,087.15/x
  3. Step 3: Cross multiply
    663,606.83x = 915,737.96 × 377,087.15
  4. Step 4: Simplify right side
    663,606.83x = 345,313,017,483.21
  5. Step 5: Solve for x
    x = 345,313,017,483.21/663,606.83
  6. Step 6: Final answer
    x = 520,357.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.