Home / 814,014.10-1,123,259.42-451,431.64

Finding the Fourth Proportional to 814,014.10, 1,123,259.42 and 451,431.64

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Solution

The fourth proportional to 814,014.10, 1,123,259.42 and 451,431.64 is: 622,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,014.10 : 1,123,259.42 = 451,431.64 : x
  2. Step 2: Convert to fraction form
    814,014.10/1,123,259.42 = 451,431.64/x
  3. Step 3: Cross multiply
    814,014.10x = 1,123,259.42 × 451,431.64
  4. Step 4: Simplify right side
    814,014.10x = 507,074,842,116.05
  5. Step 5: Solve for x
    x = 507,074,842,116.05/814,014.10
  6. Step 6: Final answer
    x = 622,931.28

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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.