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Finding the Fourth Proportional to 558,576.77, 770,892.68 and 329,207.92

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Solution

The fourth proportional to 558,576.77, 770,892.68 and 329,207.92 is: 454,340.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,576.77 : 770,892.68 = 329,207.92 : x
  2. Step 2: Convert to fraction form
    558,576.77/770,892.68 = 329,207.92/x
  3. Step 3: Cross multiply
    558,576.77x = 770,892.68 × 329,207.92
  4. Step 4: Simplify right side
    558,576.77x = 253,783,974,621.81
  5. Step 5: Solve for x
    x = 253,783,974,621.81/558,576.77
  6. Step 6: Final answer
    x = 454,340.36

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Double scale
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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.