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Finding the Fourth Proportional to 415,677.16, 622,613.44 and 255,266.28

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Solution

The fourth proportional to 415,677.16, 622,613.44 and 255,266.28 is: 382,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,677.16 : 622,613.44 = 255,266.28 : x
  2. Step 2: Convert to fraction form
    415,677.16/622,613.44 = 255,266.28/x
  3. Step 3: Cross multiply
    415,677.16x = 622,613.44 × 255,266.28
  4. Step 4: Simplify right side
    415,677.16x = 158,932,216,706.80
  5. Step 5: Solve for x
    x = 158,932,216,706.80/415,677.16
  6. Step 6: Final answer
    x = 382,345.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.