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Finding the Fourth Proportional to 488,017.12, 732,084.74 and 172,409.44

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Solution

The fourth proportional to 488,017.12, 732,084.74 and 172,409.44 is: 258,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,017.12 : 732,084.74 = 172,409.44 : x
  2. Step 2: Convert to fraction form
    488,017.12/732,084.74 = 172,409.44/x
  3. Step 3: Cross multiply
    488,017.12x = 732,084.74 × 172,409.44
  4. Step 4: Simplify right side
    488,017.12x = 126,218,320,055.95
  5. Step 5: Solve for x
    x = 126,218,320,055.95/488,017.12
  6. Step 6: Final answer
    x = 258,635.03

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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.