Home / 206,438.04-309,657.56-56,680.40

Finding the Fourth Proportional to 206,438.04, 309,657.56 and 56,680.40

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Solution

The fourth proportional to 206,438.04, 309,657.56 and 56,680.40 is: 85,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,438.04 : 309,657.56 = 56,680.40 : x
  2. Step 2: Convert to fraction form
    206,438.04/309,657.56 = 56,680.40/x
  3. Step 3: Cross multiply
    206,438.04x = 309,657.56 × 56,680.40
  4. Step 4: Simplify right side
    206,438.04x = 17,551,514,363.82
  5. Step 5: Solve for x
    x = 17,551,514,363.82/206,438.04
  6. Step 6: Final answer
    x = 85,020.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.