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Finding the Fourth Proportional to 1,974,562.13, 2,961,843.20 and 478,654.13

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Solution

The fourth proportional to 1,974,562.13, 2,961,843.20 and 478,654.13 is: 717,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,562.13 : 2,961,843.20 = 478,654.13 : x
  2. Step 2: Convert to fraction form
    1,974,562.13/2,961,843.20 = 478,654.13/x
  3. Step 3: Cross multiply
    1,974,562.13x = 2,961,843.20 × 478,654.13
  4. Step 4: Simplify right side
    1,974,562.13x = 1,417,698,462,889.93
  5. Step 5: Solve for x
    x = 1,417,698,462,889.93/1,974,562.13
  6. Step 6: Final answer
    x = 717,981.19

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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.