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Finding the Fourth Proportional to 581,252.40, 871,878.60 and 482,948.40

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Solution

The fourth proportional to 581,252.40, 871,878.60 and 482,948.40 is: 724,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,252.40 : 871,878.60 = 482,948.40 : x
  2. Step 2: Convert to fraction form
    581,252.40/871,878.60 = 482,948.40/x
  3. Step 3: Cross multiply
    581,252.40x = 871,878.60 × 482,948.40
  4. Step 4: Simplify right side
    581,252.40x = 421,072,374,864.24
  5. Step 5: Solve for x
    x = 421,072,374,864.24/581,252.40
  6. Step 6: Final answer
    x = 724,422.60

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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.