Home / 421,143.75-581,180.71-237,385.18

Finding the Fourth Proportional to 421,143.75, 581,180.71 and 237,385.18

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Solution

The fourth proportional to 421,143.75, 581,180.71 and 237,385.18 is: 327,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,143.75 : 581,180.71 = 237,385.18 : x
  2. Step 2: Convert to fraction form
    421,143.75/581,180.71 = 237,385.18/x
  3. Step 3: Cross multiply
    421,143.75x = 581,180.71 × 237,385.18
  4. Step 4: Simplify right side
    421,143.75x = 137,963,687,455.88
  5. Step 5: Solve for x
    x = 137,963,687,455.88/421,143.75
  6. Step 6: Final answer
    x = 327,592.86

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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.