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Finding the Fourth Proportional to 488,428.80, 732,772.80 and 172,852.80

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Solution

The fourth proportional to 488,428.80, 732,772.80 and 172,852.80 is: 259,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,428.80 : 732,772.80 = 172,852.80 : x
  2. Step 2: Convert to fraction form
    488,428.80/732,772.80 = 172,852.80/x
  3. Step 3: Cross multiply
    488,428.80x = 732,772.80 × 172,852.80
  4. Step 4: Simplify right side
    488,428.80x = 126,661,830,243.84
  5. Step 5: Solve for x
    x = 126,661,830,243.84/488,428.80
  6. Step 6: Final answer
    x = 259,325.06

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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.