Home / 636,899.46-878,934.88-350,420.38

Finding the Fourth Proportional to 636,899.46, 878,934.88 and 350,420.38

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Solution

The fourth proportional to 636,899.46, 878,934.88 and 350,420.38 is: 483,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,899.46 : 878,934.88 = 350,420.38 : x
  2. Step 2: Convert to fraction form
    636,899.46/878,934.88 = 350,420.38/x
  3. Step 3: Cross multiply
    636,899.46x = 878,934.88 × 350,420.38
  4. Step 4: Simplify right side
    636,899.46x = 307,996,694,644.85
  5. Step 5: Solve for x
    x = 307,996,694,644.85/636,899.46
  6. Step 6: Final answer
    x = 483,587.62

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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.