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Finding the Fourth Proportional to 543,979.75, 751,145.26 and 453,808.38

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Solution

The fourth proportional to 543,979.75, 751,145.26 and 453,808.38 is: 626,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,979.75 : 751,145.26 = 453,808.38 : x
  2. Step 2: Convert to fraction form
    543,979.75/751,145.26 = 453,808.38/x
  3. Step 3: Cross multiply
    543,979.75x = 751,145.26 × 453,808.38
  4. Step 4: Simplify right side
    543,979.75x = 340,876,013,585.28
  5. Step 5: Solve for x
    x = 340,876,013,585.28/543,979.75
  6. Step 6: Final answer
    x = 626,633.65

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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.