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Finding the Fourth Proportional to 354,868.60, 532,302.90 and 329,207.80

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Solution

The fourth proportional to 354,868.60, 532,302.90 and 329,207.80 is: 493,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,868.60 : 532,302.90 = 329,207.80 : x
  2. Step 2: Convert to fraction form
    354,868.60/532,302.90 = 329,207.80/x
  3. Step 3: Cross multiply
    354,868.60x = 532,302.90 × 329,207.80
  4. Step 4: Simplify right side
    354,868.60x = 175,238,266,642.62
  5. Step 5: Solve for x
    x = 175,238,266,642.62/354,868.60
  6. Step 6: Final answer
    x = 493,811.70

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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.