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Finding the Fourth Proportional to 988,625.20, 1,482,937.80 and 483,428.20

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Solution

The fourth proportional to 988,625.20, 1,482,937.80 and 483,428.20 is: 725,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,625.20 : 1,482,937.80 = 483,428.20 : x
  2. Step 2: Convert to fraction form
    988,625.20/1,482,937.80 = 483,428.20/x
  3. Step 3: Cross multiply
    988,625.20x = 1,482,937.80 × 483,428.20
  4. Step 4: Simplify right side
    988,625.20x = 716,893,951,365.96
  5. Step 5: Solve for x
    x = 716,893,951,365.96/988,625.20
  6. Step 6: Final answer
    x = 725,142.30

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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.