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Finding the Fourth Proportional to 5,765,950.64, 7,955,691.68 and 3,442,390.88

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Solution

The fourth proportional to 5,765,950.64, 7,955,691.68 and 3,442,390.88 is: 4,749,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765,950.64 : 7,955,691.68 = 3,442,390.88 : x
  2. Step 2: Convert to fraction form
    5,765,950.64/7,955,691.68 = 3,442,390.88/x
  3. Step 3: Cross multiply
    5,765,950.64x = 7,955,691.68 × 3,442,390.88
  4. Step 4: Simplify right side
    5,765,950.64x = 27,386,600,483,323.88
  5. Step 5: Solve for x
    x = 27,386,600,483,323.88/5,765,950.64
  6. Step 6: Final answer
    x = 4,749,711.23

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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.