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Finding the Fourth Proportional to 317,463.76, 438,086.19 and 174,226.18

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Solution

The fourth proportional to 317,463.76, 438,086.19 and 174,226.18 is: 240,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,463.76 : 438,086.19 = 174,226.18 : x
  2. Step 2: Convert to fraction form
    317,463.76/438,086.19 = 174,226.18/x
  3. Step 3: Cross multiply
    317,463.76x = 438,086.19 × 174,226.18
  4. Step 4: Simplify right side
    317,463.76x = 76,326,083,394.45
  5. Step 5: Solve for x
    x = 76,326,083,394.45/317,463.76
  6. Step 6: Final answer
    x = 240,424.56

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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.