Home / 638,535.52-881,184.96-352,065.76

Finding the Fourth Proportional to 638,535.52, 881,184.96 and 352,065.76

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Solution

The fourth proportional to 638,535.52, 881,184.96 and 352,065.76 is: 485,854.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,535.52 : 881,184.96 = 352,065.76 : x
  2. Step 2: Convert to fraction form
    638,535.52/881,184.96 = 352,065.76/x
  3. Step 3: Cross multiply
    638,535.52x = 881,184.96 × 352,065.76
  4. Step 4: Simplify right side
    638,535.52x = 310,235,052,642.97
  5. Step 5: Solve for x
    x = 310,235,052,642.97/638,535.52
  6. Step 6: Final answer
    x = 485,854.03

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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.