Home / 439,304.17-606,238-245,712.15

Finding the Fourth Proportional to 439,304.17, 606,238 and 245,712.15

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Solution

The fourth proportional to 439,304.17, 606,238 and 245,712.15 is: 339,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,304.17 : 606,238 = 245,712.15 : x
  2. Step 2: Convert to fraction form
    439,304.17/606,238 = 245,712.15/x
  3. Step 3: Cross multiply
    439,304.17x = 606,238 × 245,712.15
  4. Step 4: Simplify right side
    439,304.17x = 148,960,042,391.70
  5. Step 5: Solve for x
    x = 148,960,042,391.70/439,304.17
  6. Step 6: Final answer
    x = 339,081.79

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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.