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Finding the Fourth Proportional to 482,040.47, 723,155.28 and 178,437.28

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Solution

The fourth proportional to 482,040.47, 723,155.28 and 178,437.28 is: 267,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,040.47 : 723,155.28 = 178,437.28 : x
  2. Step 2: Convert to fraction form
    482,040.47/723,155.28 = 178,437.28/x
  3. Step 3: Cross multiply
    482,040.47x = 723,155.28 × 178,437.28
  4. Step 4: Simplify right side
    482,040.47x = 129,037,860,812.51
  5. Step 5: Solve for x
    x = 129,037,860,812.51/482,040.47
  6. Step 6: Final answer
    x = 267,690.93

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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.