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Finding the Fourth Proportional to 612,691.60, 845,506.92 and 344,419.60

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Solution

The fourth proportional to 612,691.60, 845,506.92 and 344,419.60 is: 475,294.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,691.60 : 845,506.92 = 344,419.60 : x
  2. Step 2: Convert to fraction form
    612,691.60/845,506.92 = 344,419.60/x
  3. Step 3: Cross multiply
    612,691.60x = 845,506.92 × 344,419.60
  4. Step 4: Simplify right side
    612,691.60x = 291,209,155,183.63
  5. Step 5: Solve for x
    x = 291,209,155,183.63/612,691.60
  6. Step 6: Final answer
    x = 475,294.84

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Similar ratio
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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.