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Finding the Fourth Proportional to 498,035.40, 747,053.10 and 165,611.40

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Solution

The fourth proportional to 498,035.40, 747,053.10 and 165,611.40 is: 248,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,035.40 : 747,053.10 = 165,611.40 : x
  2. Step 2: Convert to fraction form
    498,035.40/747,053.10 = 165,611.40/x
  3. Step 3: Cross multiply
    498,035.40x = 747,053.10 × 165,611.40
  4. Step 4: Simplify right side
    498,035.40x = 123,720,509,765.34
  5. Step 5: Solve for x
    x = 123,720,509,765.34/498,035.40
  6. Step 6: Final answer
    x = 248,417.10

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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.