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Finding the Fourth Proportional to 708,265.52, 977,371.60 and 385,974.64

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Solution

The fourth proportional to 708,265.52, 977,371.60 and 385,974.64 is: 532,626.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,265.52 : 977,371.60 = 385,974.64 : x
  2. Step 2: Convert to fraction form
    708,265.52/977,371.60 = 385,974.64/x
  3. Step 3: Cross multiply
    708,265.52x = 977,371.60 × 385,974.64
  4. Step 4: Simplify right side
    708,265.52x = 377,240,651,456.22
  5. Step 5: Solve for x
    x = 377,240,651,456.22/708,265.52
  6. Step 6: Final answer
    x = 532,626.03

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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.