Home / 495,346.78-683,581.19-280,528.66

Finding the Fourth Proportional to 495,346.78, 683,581.19 and 280,528.66

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Solution

The fourth proportional to 495,346.78, 683,581.19 and 280,528.66 is: 387,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,346.78 : 683,581.19 = 280,528.66 : x
  2. Step 2: Convert to fraction form
    495,346.78/683,581.19 = 280,528.66/x
  3. Step 3: Cross multiply
    495,346.78x = 683,581.19 × 280,528.66
  4. Step 4: Simplify right side
    495,346.78x = 191,764,115,231.91
  5. Step 5: Solve for x
    x = 191,764,115,231.91/495,346.78
  6. Step 6: Final answer
    x = 387,131.04

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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.