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Finding the Fourth Proportional to 439,237.56, 606,147.78 and 238,033.56

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Solution

The fourth proportional to 439,237.56, 606,147.78 and 238,033.56 is: 328,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,237.56 : 606,147.78 = 238,033.56 : x
  2. Step 2: Convert to fraction form
    439,237.56/606,147.78 = 238,033.56/x
  3. Step 3: Cross multiply
    439,237.56x = 606,147.78 × 238,033.56
  4. Step 4: Simplify right side
    439,237.56x = 144,283,513,959.50
  5. Step 5: Solve for x
    x = 144,283,513,959.50/439,237.56
  6. Step 6: Final answer
    x = 328,486.28

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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.