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Finding the Fourth Proportional to 590,431.40, 885,647.10 and 544,812.20

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Solution

The fourth proportional to 590,431.40, 885,647.10 and 544,812.20 is: 817,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,431.40 : 885,647.10 = 544,812.20 : x
  2. Step 2: Convert to fraction form
    590,431.40/885,647.10 = 544,812.20/x
  3. Step 3: Cross multiply
    590,431.40x = 885,647.10 × 544,812.20
  4. Step 4: Simplify right side
    590,431.40x = 482,511,344,974.62
  5. Step 5: Solve for x
    x = 482,511,344,974.62/590,431.40
  6. Step 6: Final answer
    x = 817,218.30

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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.