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Finding the Fourth Proportional to 354,662.70, 532,042.65 and 117,980.70

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Solution

The fourth proportional to 354,662.70, 532,042.65 and 117,980.70 is: 176,987.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,662.70 : 532,042.65 = 117,980.70 : x
  2. Step 2: Convert to fraction form
    354,662.70/532,042.65 = 117,980.70/x
  3. Step 3: Cross multiply
    354,662.70x = 532,042.65 × 117,980.70
  4. Step 4: Simplify right side
    354,662.70x = 62,770,764,276.86
  5. Step 5: Solve for x
    x = 62,770,764,276.86/354,662.70
  6. Step 6: Final answer
    x = 176,987.22

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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.