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Finding the Fourth Proportional to 7,098,839.18, 9,798,404.87 and 4,199,238.04

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Solution

The fourth proportional to 7,098,839.18, 9,798,404.87 and 4,199,238.04 is: 5,796,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098,839.18 : 9,798,404.87 = 4,199,238.04 : x
  2. Step 2: Convert to fraction form
    7,098,839.18/9,798,404.87 = 4,199,238.04/x
  3. Step 3: Cross multiply
    7,098,839.18x = 9,798,404.87 × 4,199,238.04
  4. Step 4: Simplify right side
    7,098,839.18x = 41,145,834,461,425.25
  5. Step 5: Solve for x
    x = 41,145,834,461,425.25/7,098,839.18
  6. Step 6: Final answer
    x = 5,796,135.60

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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.