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Finding the Fourth Proportional to 723,294.60, 998,150.25 and 417,383.88

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Solution

The fourth proportional to 723,294.60, 998,150.25 and 417,383.88 is: 575,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,294.60 : 998,150.25 = 417,383.88 : x
  2. Step 2: Convert to fraction form
    723,294.60/998,150.25 = 417,383.88/x
  3. Step 3: Cross multiply
    723,294.60x = 998,150.25 × 417,383.88
  4. Step 4: Simplify right side
    723,294.60x = 416,611,824,167.97
  5. Step 5: Solve for x
    x = 416,611,824,167.97/723,294.60
  6. Step 6: Final answer
    x = 575,991.89

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Double scale
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1.5x scale

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.