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Finding the Fourth Proportional to 1,078,788.66, 1,488,764.12 and 588,784.97

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Solution

The fourth proportional to 1,078,788.66, 1,488,764.12 and 588,784.97 is: 812,542.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,788.66 : 1,488,764.12 = 588,784.97 : x
  2. Step 2: Convert to fraction form
    1,078,788.66/1,488,764.12 = 588,784.97/x
  3. Step 3: Cross multiply
    1,078,788.66x = 1,488,764.12 × 588,784.97
  4. Step 4: Simplify right side
    1,078,788.66x = 876,561,927,343.53
  5. Step 5: Solve for x
    x = 876,561,927,343.53/1,078,788.66
  6. Step 6: Final answer
    x = 812,542.77

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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.