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Finding the Fourth Proportional to 1,078,768.67, 1,488,736.51 and 588,764.93

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Solution

The fourth proportional to 1,078,768.67, 1,488,736.51 and 588,764.93 is: 812,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,768.67 : 1,488,736.51 = 588,764.93 : x
  2. Step 2: Convert to fraction form
    1,078,768.67/1,488,736.51 = 588,764.93/x
  3. Step 3: Cross multiply
    1,078,768.67x = 1,488,736.51 × 588,764.93
  4. Step 4: Simplify right side
    1,078,768.67x = 876,515,838,183.00
  5. Step 5: Solve for x
    x = 876,515,838,183.00/1,078,768.67
  6. Step 6: Final answer
    x = 812,515.11

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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.