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Finding the Fourth Proportional to 558,711.50, 770,887.40 and 329,277.92

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Solution

The fourth proportional to 558,711.50, 770,887.40 and 329,277.92 is: 454,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,711.50 : 770,887.40 = 329,277.92 : x
  2. Step 2: Convert to fraction form
    558,711.50/770,887.40 = 329,277.92/x
  3. Step 3: Cross multiply
    558,711.50x = 770,887.40 × 329,277.92
  4. Step 4: Simplify right side
    558,711.50x = 253,836,199,626.21
  5. Step 5: Solve for x
    x = 253,836,199,626.21/558,711.50
  6. Step 6: Final answer
    x = 454,324.28

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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.