Home / 823,200.71-1,234,801.06-542,652.35

Finding the Fourth Proportional to 823,200.71, 1,234,801.06 and 542,652.35

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Solution

The fourth proportional to 823,200.71, 1,234,801.06 and 542,652.35 is: 813,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,200.71 : 1,234,801.06 = 542,652.35 : x
  2. Step 2: Convert to fraction form
    823,200.71/1,234,801.06 = 542,652.35/x
  3. Step 3: Cross multiply
    823,200.71x = 1,234,801.06 × 542,652.35
  4. Step 4: Simplify right side
    823,200.71x = 670,067,689,460.86
  5. Step 5: Solve for x
    x = 670,067,689,460.86/823,200.71
  6. Step 6: Final answer
    x = 813,978.52

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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.