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Finding the Fourth Proportional to 303,345.74, 418,613.83 and 167,385.42

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Solution

The fourth proportional to 303,345.74, 418,613.83 and 167,385.42 is: 230,990.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,345.74 : 418,613.83 = 167,385.42 : x
  2. Step 2: Convert to fraction form
    303,345.74/418,613.83 = 167,385.42/x
  3. Step 3: Cross multiply
    303,345.74x = 418,613.83 × 167,385.42
  4. Step 4: Simplify right side
    303,345.74x = 70,069,851,124.29
  5. Step 5: Solve for x
    x = 70,069,851,124.29/303,345.74
  6. Step 6: Final answer
    x = 230,990.06

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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.