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Finding the Fourth Proportional to 998,366, 1,377,263.40 and 654,052.28

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Solution

The fourth proportional to 998,366, 1,377,263.40 and 654,052.28 is: 902,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,366 : 1,377,263.40 = 654,052.28 : x
  2. Step 2: Convert to fraction form
    998,366/1,377,263.40 = 654,052.28/x
  3. Step 3: Cross multiply
    998,366x = 1,377,263.40 × 654,052.28
  4. Step 4: Simplify right side
    998,366x = 900,802,266,930.55
  5. Step 5: Solve for x
    x = 900,802,266,930.55/998,366
  6. Step 6: Final answer
    x = 902,276.59

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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.