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Finding the Fourth Proportional to 544,514.80, 816,116.10 and 278,138.20

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Solution

The fourth proportional to 544,514.80, 816,116.10 and 278,138.20 is: 416,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,514.80 : 816,116.10 = 278,138.20 : x
  2. Step 2: Convert to fraction form
    544,514.80/816,116.10 = 278,138.20/x
  3. Step 3: Cross multiply
    544,514.80x = 816,116.10 × 278,138.20
  4. Step 4: Simplify right side
    544,514.80x = 226,993,063,045.02
  5. Step 5: Solve for x
    x = 226,993,063,045.02/544,514.80
  6. Step 6: Final answer
    x = 416,872.16

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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.