Home / 814,221.10-1,221,331.65-562,278.70

Finding the Fourth Proportional to 814,221.10, 1,221,331.65 and 562,278.70

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Solution

The fourth proportional to 814,221.10, 1,221,331.65 and 562,278.70 is: 843,418.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,221.10 : 1,221,331.65 = 562,278.70 : x
  2. Step 2: Convert to fraction form
    814,221.10/1,221,331.65 = 562,278.70/x
  3. Step 3: Cross multiply
    814,221.10x = 1,221,331.65 × 562,278.70
  4. Step 4: Simplify right side
    814,221.10x = 686,728,772,430.86
  5. Step 5: Solve for x
    x = 686,728,772,430.86/814,221.10
  6. Step 6: Final answer
    x = 843,418.05

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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.