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Finding the Fourth Proportional to 584,220.60, 876,330.90 and 331,403.40

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Solution

The fourth proportional to 584,220.60, 876,330.90 and 331,403.40 is: 497,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,220.60 : 876,330.90 = 331,403.40 : x
  2. Step 2: Convert to fraction form
    584,220.60/876,330.90 = 331,403.40/x
  3. Step 3: Cross multiply
    584,220.60x = 876,330.90 × 331,403.40
  4. Step 4: Simplify right side
    584,220.60x = 290,419,039,785.06
  5. Step 5: Solve for x
    x = 290,419,039,785.06/584,220.60
  6. Step 6: Final answer
    x = 497,105.10

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Double scale
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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.