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Finding the Fourth Proportional to 283,389.42, 391,070.31 and 160,904.66

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Solution

The fourth proportional to 283,389.42, 391,070.31 and 160,904.66 is: 222,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,389.42 : 391,070.31 = 160,904.66 : x
  2. Step 2: Convert to fraction form
    283,389.42/391,070.31 = 160,904.66/x
  3. Step 3: Cross multiply
    283,389.42x = 391,070.31 × 160,904.66
  4. Step 4: Simplify right side
    283,389.42x = 62,925,033,311.29
  5. Step 5: Solve for x
    x = 62,925,033,311.29/283,389.42
  6. Step 6: Final answer
    x = 222,044.40

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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.