Home / 495,093.10-683,178.61-280,195.75

Finding the Fourth Proportional to 495,093.10, 683,178.61 and 280,195.75

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Solution

The fourth proportional to 495,093.10, 683,178.61 and 280,195.75 is: 386,641.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,093.10 : 683,178.61 = 280,195.75 : x
  2. Step 2: Convert to fraction form
    495,093.10/683,178.61 = 280,195.75/x
  3. Step 3: Cross multiply
    495,093.10x = 683,178.61 × 280,195.75
  4. Step 4: Simplify right side
    495,093.10x = 191,423,738,196.04
  5. Step 5: Solve for x
    x = 191,423,738,196.04/495,093.10
  6. Step 6: Final answer
    x = 386,641.91

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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.