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Finding the Fourth Proportional to 317,792.25, 438,553.71 and 174,555.09

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Solution

The fourth proportional to 317,792.25, 438,553.71 and 174,555.09 is: 240,886.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,792.25 : 438,553.71 = 174,555.09 : x
  2. Step 2: Convert to fraction form
    317,792.25/438,553.71 = 174,555.09/x
  3. Step 3: Cross multiply
    317,792.25x = 438,553.71 × 174,555.09
  4. Step 4: Simplify right side
    317,792.25x = 76,551,782,318.88
  5. Step 5: Solve for x
    x = 76,551,782,318.88/317,792.25
  6. Step 6: Final answer
    x = 240,886.25

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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.