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Finding the Fourth Proportional to 708,062.56, 977,137.53 and 385,772.56

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Solution

The fourth proportional to 708,062.56, 977,137.53 and 385,772.56 is: 532,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,062.56 : 977,137.53 = 385,772.56 : x
  2. Step 2: Convert to fraction form
    708,062.56/977,137.53 = 385,772.56/x
  3. Step 3: Cross multiply
    708,062.56x = 977,137.53 × 385,772.56
  4. Step 4: Simplify right side
    708,062.56x = 376,952,841,534.49
  5. Step 5: Solve for x
    x = 376,952,841,534.49/708,062.56
  6. Step 6: Final answer
    x = 532,372.23

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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.