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Finding the Fourth Proportional to 573,141.80, 859,712.70 and 519,997.70

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Solution

The fourth proportional to 573,141.80, 859,712.70 and 519,997.70 is: 779,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,141.80 : 859,712.70 = 519,997.70 : x
  2. Step 2: Convert to fraction form
    573,141.80/859,712.70 = 519,997.70/x
  3. Step 3: Cross multiply
    573,141.80x = 859,712.70 × 519,997.70
  4. Step 4: Simplify right side
    573,141.80x = 447,048,626,660.79
  5. Step 5: Solve for x
    x = 447,048,626,660.79/573,141.80
  6. Step 6: Final answer
    x = 779,996.55

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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.