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Finding the Fourth Proportional to 450,923.77, 676,394.28 and 147,318.77

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Solution

The fourth proportional to 450,923.77, 676,394.28 and 147,318.77 is: 220,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,923.77 : 676,394.28 = 147,318.77 : x
  2. Step 2: Convert to fraction form
    450,923.77/676,394.28 = 147,318.77/x
  3. Step 3: Cross multiply
    450,923.77x = 676,394.28 × 147,318.77
  4. Step 4: Simplify right side
    450,923.77x = 99,645,570,535.11
  5. Step 5: Solve for x
    x = 99,645,570,535.11/450,923.77
  6. Step 6: Final answer
    x = 220,980.97

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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.