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Finding the Fourth Proportional to 439,441, 606,428.58 and 238,237

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Solution

The fourth proportional to 439,441, 606,428.58 and 238,237 is: 328,767.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,441 : 606,428.58 = 238,237 : x
  2. Step 2: Convert to fraction form
    439,441/606,428.58 = 238,237/x
  3. Step 3: Cross multiply
    439,441x = 606,428.58 × 238,237
  4. Step 4: Simplify right side
    439,441x = 144,473,725,613.46
  5. Step 5: Solve for x
    x = 144,473,725,613.46/439,441
  6. Step 6: Final answer
    x = 328,767.06

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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.