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Finding the Fourth Proportional to 439,888.80, 607,053.60 and 238,684.80

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Solution

The fourth proportional to 439,888.80, 607,053.60 and 238,684.80 is: 329,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,888.80 : 607,053.60 = 238,684.80 : x
  2. Step 2: Convert to fraction form
    439,888.80/607,053.60 = 238,684.80/x
  3. Step 3: Cross multiply
    439,888.80x = 607,053.60 × 238,684.80
  4. Step 4: Simplify right side
    439,888.80x = 144,894,467,105.28
  5. Step 5: Solve for x
    x = 144,894,467,105.28/439,888.80
  6. Step 6: Final answer
    x = 329,388.85

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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.