Home / 814,219.59-1,123,641.05-451,631.64

Finding the Fourth Proportional to 814,219.59, 1,123,641.05 and 451,631.64

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Solution

The fourth proportional to 814,219.59, 1,123,641.05 and 451,631.64 is: 623,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,219.59 : 1,123,641.05 = 451,631.64 : x
  2. Step 2: Convert to fraction form
    814,219.59/1,123,641.05 = 451,631.64/x
  3. Step 3: Cross multiply
    814,219.59x = 1,123,641.05 × 451,631.64
  4. Step 4: Simplify right side
    814,219.59x = 507,471,847,924.66
  5. Step 5: Solve for x
    x = 507,471,847,924.66/814,219.59
  6. Step 6: Final answer
    x = 623,261.65

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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.