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Finding the Fourth Proportional to 382,759.70, 528,200.66 and 239,598.68

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Solution

The fourth proportional to 382,759.70, 528,200.66 and 239,598.68 is: 330,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,759.70 : 528,200.66 = 239,598.68 : x
  2. Step 2: Convert to fraction form
    382,759.70/528,200.66 = 239,598.68/x
  3. Step 3: Cross multiply
    382,759.70x = 528,200.66 × 239,598.68
  4. Step 4: Simplify right side
    382,759.70x = 126,556,178,869.12
  5. Step 5: Solve for x
    x = 126,556,178,869.12/382,759.70
  6. Step 6: Final answer
    x = 330,641.34

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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.