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Finding the Fourth Proportional to 584,513.70, 876,770.55 and 519,195.30

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Solution

The fourth proportional to 584,513.70, 876,770.55 and 519,195.30 is: 778,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,513.70 : 876,770.55 = 519,195.30 : x
  2. Step 2: Convert to fraction form
    584,513.70/876,770.55 = 519,195.30/x
  3. Step 3: Cross multiply
    584,513.70x = 876,770.55 × 519,195.30
  4. Step 4: Simplify right side
    584,513.70x = 455,215,148,738.42
  5. Step 5: Solve for x
    x = 455,215,148,738.42/584,513.70
  6. Step 6: Final answer
    x = 778,792.95

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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.