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Finding the Fourth Proportional to 488,561.51, 732,911.82 and 151,631.28

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Solution

The fourth proportional to 488,561.51, 732,911.82 and 151,631.28 is: 227,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,561.51 : 732,911.82 = 151,631.28 : x
  2. Step 2: Convert to fraction form
    488,561.51/732,911.82 = 151,631.28/x
  3. Step 3: Cross multiply
    488,561.51x = 732,911.82 × 151,631.28
  4. Step 4: Simplify right side
    488,561.51x = 111,132,357,393.73
  5. Step 5: Solve for x
    x = 111,132,357,393.73/488,561.51
  6. Step 6: Final answer
    x = 227,468.51

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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.