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Finding the Fourth Proportional to 520,517.04, 718,234.08 and 294,079.92

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Solution

The fourth proportional to 520,517.04, 718,234.08 and 294,079.92 is: 405,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,517.04 : 718,234.08 = 294,079.92 : x
  2. Step 2: Convert to fraction form
    520,517.04/718,234.08 = 294,079.92/x
  3. Step 3: Cross multiply
    520,517.04x = 718,234.08 × 294,079.92
  4. Step 4: Simplify right side
    520,517.04x = 211,218,220,787.67
  5. Step 5: Solve for x
    x = 211,218,220,787.67/520,517.04
  6. Step 6: Final answer
    x = 405,785.41

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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.