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Finding the Fourth Proportional to 488,584.60, 732,876.90 and 404,603.80

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Solution

The fourth proportional to 488,584.60, 732,876.90 and 404,603.80 is: 606,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,584.60 : 732,876.90 = 404,603.80 : x
  2. Step 2: Convert to fraction form
    488,584.60/732,876.90 = 404,603.80/x
  3. Step 3: Cross multiply
    488,584.60x = 732,876.90 × 404,603.80
  4. Step 4: Simplify right side
    488,584.60x = 296,524,778,672.22
  5. Step 5: Solve for x
    x = 296,524,778,672.22/488,584.60
  6. Step 6: Final answer
    x = 606,905.70

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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.