Home / 638,449.86-881,060.88-366,535.38

Finding the Fourth Proportional to 638,449.86, 881,060.88 and 366,535.38

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Solution

The fourth proportional to 638,449.86, 881,060.88 and 366,535.38 is: 505,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,449.86 : 881,060.88 = 366,535.38 : x
  2. Step 2: Convert to fraction form
    638,449.86/881,060.88 = 366,535.38/x
  3. Step 3: Cross multiply
    638,449.86x = 881,060.88 × 366,535.38
  4. Step 4: Simplify right side
    638,449.86x = 322,939,984,453.93
  5. Step 5: Solve for x
    x = 322,939,984,453.93/638,449.86
  6. Step 6: Final answer
    x = 505,818.87

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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.