Home / 280,827.28-387,541.62-153,503.38

Finding the Fourth Proportional to 280,827.28, 387,541.62 and 153,503.38

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Solution

The fourth proportional to 280,827.28, 387,541.62 and 153,503.38 is: 211,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,827.28 : 387,541.62 = 153,503.38 : x
  2. Step 2: Convert to fraction form
    280,827.28/387,541.62 = 153,503.38/x
  3. Step 3: Cross multiply
    280,827.28x = 387,541.62 × 153,503.38
  4. Step 4: Simplify right side
    280,827.28x = 59,488,948,560.68
  5. Step 5: Solve for x
    x = 59,488,948,560.68/280,827.28
  6. Step 6: Final answer
    x = 211,834.65

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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.