Home / 865,100.25-1,193,815.06-477,907.29

Finding the Fourth Proportional to 865,100.25, 1,193,815.06 and 477,907.29

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Solution

The fourth proportional to 865,100.25, 1,193,815.06 and 477,907.29 is: 659,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,100.25 : 1,193,815.06 = 477,907.29 : x
  2. Step 2: Convert to fraction form
    865,100.25/1,193,815.06 = 477,907.29/x
  3. Step 3: Cross multiply
    865,100.25x = 1,193,815.06 × 477,907.29
  4. Step 4: Simplify right side
    865,100.25x = 570,532,918,891.02
  5. Step 5: Solve for x
    x = 570,532,918,891.02/865,100.25
  6. Step 6: Final answer
    x = 659,499.20

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.