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Finding the Fourth Proportional to 631,974.76, 947,769.36 and 332,292.76

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Solution

The fourth proportional to 631,974.76, 947,769.36 and 332,292.76 is: 498,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,974.76 : 947,769.36 = 332,292.76 : x
  2. Step 2: Convert to fraction form
    631,974.76/947,769.36 = 332,292.76/x
  3. Step 3: Cross multiply
    631,974.76x = 947,769.36 × 332,292.76
  4. Step 4: Simplify right side
    631,974.76x = 314,936,896,477.83
  5. Step 5: Solve for x
    x = 314,936,896,477.83/631,974.76
  6. Step 6: Final answer
    x = 498,337.78

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Double scale
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1.5x scale

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.