Home / 638,229.79-881,048.15-454,586.59

Finding the Fourth Proportional to 638,229.79, 881,048.15 and 454,586.59

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Solution

The fourth proportional to 638,229.79, 881,048.15 and 454,586.59 is: 627,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,229.79 : 881,048.15 = 454,586.59 : x
  2. Step 2: Convert to fraction form
    638,229.79/881,048.15 = 454,586.59/x
  3. Step 3: Cross multiply
    638,229.79x = 881,048.15 × 454,586.59
  4. Step 4: Simplify right side
    638,229.79x = 400,512,674,134.31
  5. Step 5: Solve for x
    x = 400,512,674,134.31/638,229.79
  6. Step 6: Final answer
    x = 627,536.79

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Double scale
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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.