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Finding the Fourth Proportional to 314,018.60, 433,348.85 and 170,781.80

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Solution

The fourth proportional to 314,018.60, 433,348.85 and 170,781.80 is: 235,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,018.60 : 433,348.85 = 170,781.80 : x
  2. Step 2: Convert to fraction form
    314,018.60/433,348.85 = 170,781.80/x
  3. Step 3: Cross multiply
    314,018.60x = 433,348.85 × 170,781.80
  4. Step 4: Simplify right side
    314,018.60x = 74,008,096,630.93
  5. Step 5: Solve for x
    x = 74,008,096,630.93/314,018.60
  6. Step 6: Final answer
    x = 235,680.61

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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.