Home / 485,977.38-670,646.70-271,117.62

Finding the Fourth Proportional to 485,977.38, 670,646.70 and 271,117.62

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Solution

The fourth proportional to 485,977.38, 670,646.70 and 271,117.62 is: 374,141.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,977.38 : 670,646.70 = 271,117.62 : x
  2. Step 2: Convert to fraction form
    485,977.38/670,646.70 = 271,117.62/x
  3. Step 3: Cross multiply
    485,977.38x = 670,646.70 × 271,117.62
  4. Step 4: Simplify right side
    485,977.38x = 181,824,137,164.85
  5. Step 5: Solve for x
    x = 181,824,137,164.85/485,977.38
  6. Step 6: Final answer
    x = 374,141.15

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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.