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Finding the Fourth Proportional to 354,622.40, 532,279.20 and 177,329.60

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Solution

The fourth proportional to 354,622.40, 532,279.20 and 177,329.60 is: 266,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,622.40 : 532,279.20 = 177,329.60 : x
  2. Step 2: Convert to fraction form
    354,622.40/532,279.20 = 177,329.60/x
  3. Step 3: Cross multiply
    354,622.40x = 532,279.20 × 177,329.60
  4. Step 4: Simplify right side
    354,622.40x = 94,388,857,624.32
  5. Step 5: Solve for x
    x = 94,388,857,624.32/354,622.40
  6. Step 6: Final answer
    x = 266,167.22

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1.5x scale

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.