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Finding the Fourth Proportional to 439,555.25, 606,586.25 and 238,351.25

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Solution

The fourth proportional to 439,555.25, 606,586.25 and 238,351.25 is: 328,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,555.25 : 606,586.25 = 238,351.25 : x
  2. Step 2: Convert to fraction form
    439,555.25/606,586.25 = 238,351.25/x
  3. Step 3: Cross multiply
    439,555.25x = 606,586.25 × 238,351.25
  4. Step 4: Simplify right side
    439,555.25x = 144,580,590,920.31
  5. Step 5: Solve for x
    x = 144,580,590,920.31/439,555.25
  6. Step 6: Final answer
    x = 328,924.73

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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.