Home / 865,636.80-1,298,455.20-546,772.20

Finding the Fourth Proportional to 865,636.80, 1,298,455.20 and 546,772.20

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Solution

The fourth proportional to 865,636.80, 1,298,455.20 and 546,772.20 is: 820,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,636.80 : 1,298,455.20 = 546,772.20 : x
  2. Step 2: Convert to fraction form
    865,636.80/1,298,455.20 = 546,772.20/x
  3. Step 3: Cross multiply
    865,636.80x = 1,298,455.20 × 546,772.20
  4. Step 4: Simplify right side
    865,636.80x = 709,959,206,305.44
  5. Step 5: Solve for x
    x = 709,959,206,305.44/865,636.80
  6. Step 6: Final answer
    x = 820,158.30

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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.