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Finding the Fourth Proportional to 322,463.76, 443,983.56 and 292,570.20

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Solution

The fourth proportional to 322,463.76, 443,983.56 and 292,570.20 is: 402,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,463.76 : 443,983.56 = 292,570.20 : x
  2. Step 2: Convert to fraction form
    322,463.76/443,983.56 = 292,570.20/x
  3. Step 3: Cross multiply
    322,463.76x = 443,983.56 × 292,570.20
  4. Step 4: Simplify right side
    322,463.76x = 129,896,358,945.91
  5. Step 5: Solve for x
    x = 129,896,358,945.91/322,463.76
  6. Step 6: Final answer
    x = 402,824.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.