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Finding the Fourth Proportional to 487,231.20, 730,846.80 and 460,197.60

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Solution

The fourth proportional to 487,231.20, 730,846.80 and 460,197.60 is: 690,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,231.20 : 730,846.80 = 460,197.60 : x
  2. Step 2: Convert to fraction form
    487,231.20/730,846.80 = 460,197.60/x
  3. Step 3: Cross multiply
    487,231.20x = 730,846.80 × 460,197.60
  4. Step 4: Simplify right side
    487,231.20x = 336,333,943,327.68
  5. Step 5: Solve for x
    x = 336,333,943,327.68/487,231.20
  6. Step 6: Final answer
    x = 690,296.40

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.