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Finding the Fourth Proportional to 708,353.88, 977,499.84 and 386,057.04

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Solution

The fourth proportional to 708,353.88, 977,499.84 and 386,057.04 is: 532,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,353.88 : 977,499.84 = 386,057.04 : x
  2. Step 2: Convert to fraction form
    708,353.88/977,499.84 = 386,057.04/x
  3. Step 3: Cross multiply
    708,353.88x = 977,499.84 × 386,057.04
  4. Step 4: Simplify right side
    708,353.88x = 377,370,694,830.87
  5. Step 5: Solve for x
    x = 377,370,694,830.87/708,353.88
  6. Step 6: Final answer
    x = 532,743.17

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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.