Home / 421,581.33-581,838.52-237,857.61

Finding the Fourth Proportional to 421,581.33, 581,838.52 and 237,857.61

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Solution

The fourth proportional to 421,581.33, 581,838.52 and 237,857.61 is: 328,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,581.33 : 581,838.52 = 237,857.61 : x
  2. Step 2: Convert to fraction form
    421,581.33/581,838.52 = 237,857.61/x
  3. Step 3: Cross multiply
    421,581.33x = 581,838.52 × 237,857.61
  4. Step 4: Simplify right side
    421,581.33x = 138,394,720,038.45
  5. Step 5: Solve for x
    x = 138,394,720,038.45/421,581.33
  6. Step 6: Final answer
    x = 328,275.26

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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.