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Finding the Fourth Proportional to 584,612.70, 876,919.05 and 465,639.90

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Solution

The fourth proportional to 584,612.70, 876,919.05 and 465,639.90 is: 698,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,612.70 : 876,919.05 = 465,639.90 : x
  2. Step 2: Convert to fraction form
    584,612.70/876,919.05 = 465,639.90/x
  3. Step 3: Cross multiply
    584,612.70x = 876,919.05 × 465,639.90
  4. Step 4: Simplify right side
    584,612.70x = 408,328,498,750.10
  5. Step 5: Solve for x
    x = 408,328,498,750.10/584,612.70
  6. Step 6: Final answer
    x = 698,459.85

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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.