Home / 638,228.79-881,046.77-454,585.59

Finding the Fourth Proportional to 638,228.79, 881,046.77 and 454,585.59

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Solution

The fourth proportional to 638,228.79, 881,046.77 and 454,585.59 is: 627,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,228.79 : 881,046.77 = 454,585.59 : x
  2. Step 2: Convert to fraction form
    638,228.79/881,046.77 = 454,585.59/x
  3. Step 3: Cross multiply
    638,228.79x = 881,046.77 × 454,585.59
  4. Step 4: Simplify right side
    638,228.79x = 400,511,165,758.04
  5. Step 5: Solve for x
    x = 400,511,165,758.04/638,228.79
  6. Step 6: Final answer
    x = 627,535.41

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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.