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Finding the Fourth Proportional to 1,974,569.88, 2,961,854.82 and 478,661.88

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Solution

The fourth proportional to 1,974,569.88, 2,961,854.82 and 478,661.88 is: 717,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,569.88 : 2,961,854.82 = 478,661.88 : x
  2. Step 2: Convert to fraction form
    1,974,569.88/2,961,854.82 = 478,661.88/x
  3. Step 3: Cross multiply
    1,974,569.88x = 2,961,854.82 × 478,661.88
  4. Step 4: Simplify right side
    1,974,569.88x = 1,417,726,996,428.26
  5. Step 5: Solve for x
    x = 1,417,726,996,428.26/1,974,569.88
  6. Step 6: Final answer
    x = 717,992.82

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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.