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Finding the Fourth Proportional to 708,260.13, 977,370.51 and 385,963.30

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Solution

The fourth proportional to 708,260.13, 977,370.51 and 385,963.30 is: 532,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,260.13 : 977,370.51 = 385,963.30 : x
  2. Step 2: Convert to fraction form
    708,260.13/977,370.51 = 385,963.30/x
  3. Step 3: Cross multiply
    708,260.13x = 977,370.51 × 385,963.30
  4. Step 4: Simplify right side
    708,260.13x = 377,229,147,362.28
  5. Step 5: Solve for x
    x = 377,229,147,362.28/708,260.13
  6. Step 6: Final answer
    x = 532,613.84

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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.