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Finding the Fourth Proportional to 260,553.22, 390,400.52 and 238,764.22

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Solution

The fourth proportional to 260,553.22, 390,400.52 and 238,764.22 is: 357,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,553.22 : 390,400.52 = 238,764.22 : x
  2. Step 2: Convert to fraction form
    260,553.22/390,400.52 = 238,764.22/x
  3. Step 3: Cross multiply
    260,553.22x = 390,400.52 × 238,764.22
  4. Step 4: Simplify right side
    260,553.22x = 93,213,675,645.39
  5. Step 5: Solve for x
    x = 93,213,675,645.39/260,553.22
  6. Step 6: Final answer
    x = 357,752.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.