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Finding the Fourth Proportional to 675,720.87, 932,503.10 and 373,942.95

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Solution

The fourth proportional to 675,720.87, 932,503.10 and 373,942.95 is: 516,045.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,720.87 : 932,503.10 = 373,942.95 : x
  2. Step 2: Convert to fraction form
    675,720.87/932,503.10 = 373,942.95/x
  3. Step 3: Cross multiply
    675,720.87x = 932,503.10 × 373,942.95
  4. Step 4: Simplify right side
    675,720.87x = 348,702,958,228.43
  5. Step 5: Solve for x
    x = 348,702,958,228.43/675,720.87
  6. Step 6: Final answer
    x = 516,045.86

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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.