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Finding the Fourth Proportional to 584,613.20, 876,919.80 and 465,640.40

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Solution

The fourth proportional to 584,613.20, 876,919.80 and 465,640.40 is: 698,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,613.20 : 876,919.80 = 465,640.40 : x
  2. Step 2: Convert to fraction form
    584,613.20/876,919.80 = 465,640.40/x
  3. Step 3: Cross multiply
    584,613.20x = 876,919.80 × 465,640.40
  4. Step 4: Simplify right side
    584,613.20x = 408,329,286,439.92
  5. Step 5: Solve for x
    x = 408,329,286,439.92/584,613.20
  6. Step 6: Final answer
    x = 698,460.60

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Similar ratio
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1.5x scale

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.