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Finding the Fourth Proportional to 317,442.58, 438,083.37 and 174,207.78

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Solution

The fourth proportional to 317,442.58, 438,083.37 and 174,207.78 is: 240,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,442.58 : 438,083.37 = 174,207.78 : x
  2. Step 2: Convert to fraction form
    317,442.58/438,083.37 = 174,207.78/x
  3. Step 3: Cross multiply
    317,442.58x = 438,083.37 × 174,207.78
  4. Step 4: Simplify right side
    317,442.58x = 76,317,531,342.62
  5. Step 5: Solve for x
    x = 76,317,531,342.62/317,442.58
  6. Step 6: Final answer
    x = 240,413.66

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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.