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Finding the Fourth Proportional to 317,436.96, 438,061.71 and 174,199.39

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Solution

The fourth proportional to 317,436.96, 438,061.71 and 174,199.39 is: 240,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,436.96 : 438,061.71 = 174,199.39 : x
  2. Step 2: Convert to fraction form
    317,436.96/438,061.71 = 174,199.39/x
  3. Step 3: Cross multiply
    317,436.96x = 438,061.71 × 174,199.39
  4. Step 4: Simplify right side
    317,436.96x = 76,310,082,664.36
  5. Step 5: Solve for x
    x = 76,310,082,664.36/317,436.96
  6. Step 6: Final answer
    x = 240,394.45

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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.