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Finding the Fourth Proportional to 403,928,301.60, 605,668,503.60 and 173,858,234.40

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Solution

The fourth proportional to 403,928,301.60, 605,668,503.60 and 173,858,234.40 is: 260,690,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,928,301.60 : 605,668,503.60 = 173,858,234.40 : x
  2. Step 2: Convert to fraction form
    403,928,301.60/605,668,503.60 = 173,858,234.40/x
  3. Step 3: Cross multiply
    403,928,301.60x = 605,668,503.60 × 173,858,234.40
  4. Step 4: Simplify right side
    403,928,301.60x = 105,300,456,667,586,048
  5. Step 5: Solve for x
    x = 105,300,456,667,586,048/403,928,301.60
  6. Step 6: Final answer
    x = 260,690,959.88

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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.