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Finding the Fourth Proportional to 794,805.80, 1,192,208.70 and 514,639.40

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Solution

The fourth proportional to 794,805.80, 1,192,208.70 and 514,639.40 is: 771,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,805.80 : 1,192,208.70 = 514,639.40 : x
  2. Step 2: Convert to fraction form
    794,805.80/1,192,208.70 = 514,639.40/x
  3. Step 3: Cross multiply
    794,805.80x = 1,192,208.70 × 514,639.40
  4. Step 4: Simplify right side
    794,805.80x = 613,557,570,042.78
  5. Step 5: Solve for x
    x = 613,557,570,042.78/794,805.80
  6. Step 6: Final answer
    x = 771,959.10

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Double scale
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Similar ratio
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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.