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Finding the Fourth Proportional to 347,602.50, 479,691.45 and 188,626.50

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Solution

The fourth proportional to 347,602.50, 479,691.45 and 188,626.50 is: 260,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,602.50 : 479,691.45 = 188,626.50 : x
  2. Step 2: Convert to fraction form
    347,602.50/479,691.45 = 188,626.50/x
  3. Step 3: Cross multiply
    347,602.50x = 479,691.45 × 188,626.50
  4. Step 4: Simplify right side
    347,602.50x = 90,482,519,293.43
  5. Step 5: Solve for x
    x = 90,482,519,293.43/347,602.50
  6. Step 6: Final answer
    x = 260,304.57

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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.