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Finding the Fourth Proportional to 347,657.46, 479,767.49 and 188,681.46

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Solution

The fourth proportional to 347,657.46, 479,767.49 and 188,681.46 is: 260,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,657.46 : 479,767.49 = 188,681.46 : x
  2. Step 2: Convert to fraction form
    347,657.46/479,767.49 = 188,681.46/x
  3. Step 3: Cross multiply
    347,657.46x = 479,767.49 × 188,681.46
  4. Step 4: Simplify right side
    347,657.46x = 90,523,230,473.74
  5. Step 5: Solve for x
    x = 90,523,230,473.74/347,657.46
  6. Step 6: Final answer
    x = 260,380.52

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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.