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Finding the Fourth Proportional to 7,338,663.20, 10,997,497.20 and 5,404,480.40

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Solution

The fourth proportional to 7,338,663.20, 10,997,497.20 and 5,404,480.40 is: 8,098,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338,663.20 : 10,997,497.20 = 5,404,480.40 : x
  2. Step 2: Convert to fraction form
    7,338,663.20/10,997,497.20 = 5,404,480.40/x
  3. Step 3: Cross multiply
    7,338,663.20x = 10,997,497.20 × 5,404,480.40
  4. Step 4: Simplify right side
    7,338,663.20x = 59,435,758,066,454.88
  5. Step 5: Solve for x
    x = 59,435,758,066,454.88/7,338,663.20
  6. Step 6: Final answer
    x = 8,098,989.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.