Home / 814,261.40-1,221,392.10-604,309.40

Finding the Fourth Proportional to 814,261.40, 1,221,392.10 and 604,309.40

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Solution

The fourth proportional to 814,261.40, 1,221,392.10 and 604,309.40 is: 906,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,261.40 : 1,221,392.10 = 604,309.40 : x
  2. Step 2: Convert to fraction form
    814,261.40/1,221,392.10 = 604,309.40/x
  3. Step 3: Cross multiply
    814,261.40x = 1,221,392.10 × 604,309.40
  4. Step 4: Simplify right side
    814,261.40x = 738,098,727,115.74
  5. Step 5: Solve for x
    x = 738,098,727,115.74/814,261.40
  6. Step 6: Final answer
    x = 906,464.10

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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.