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Finding the Fourth Proportional to 653,558.10, 980,337.15 and 519,713.70

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Solution

The fourth proportional to 653,558.10, 980,337.15 and 519,713.70 is: 779,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,558.10 : 980,337.15 = 519,713.70 : x
  2. Step 2: Convert to fraction form
    653,558.10/980,337.15 = 519,713.70/x
  3. Step 3: Cross multiply
    653,558.10x = 980,337.15 × 519,713.70
  4. Step 4: Simplify right side
    653,558.10x = 509,494,647,473.96
  5. Step 5: Solve for x
    x = 509,494,647,473.96/653,558.10
  6. Step 6: Final answer
    x = 779,570.55

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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.