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Finding the Fourth Proportional to 297,279.41, 410,128.80 and 169,886.66

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Solution

The fourth proportional to 297,279.41, 410,128.80 and 169,886.66 is: 234,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,279.41 : 410,128.80 = 169,886.66 : x
  2. Step 2: Convert to fraction form
    297,279.41/410,128.80 = 169,886.66/x
  3. Step 3: Cross multiply
    297,279.41x = 410,128.80 × 169,886.66
  4. Step 4: Simplify right side
    297,279.41x = 69,675,412,001.81
  5. Step 5: Solve for x
    x = 69,675,412,001.81/297,279.41
  6. Step 6: Final answer
    x = 234,376.85

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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.