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Finding the Fourth Proportional to 317,744.64, 438,513.48 and 174,532.32

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Solution

The fourth proportional to 317,744.64, 438,513.48 and 174,532.32 is: 240,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,744.64 : 438,513.48 = 174,532.32 : x
  2. Step 2: Convert to fraction form
    317,744.64/438,513.48 = 174,532.32/x
  3. Step 3: Cross multiply
    317,744.64x = 438,513.48 × 174,532.32
  4. Step 4: Simplify right side
    317,744.64x = 76,534,775,015.67
  5. Step 5: Solve for x
    x = 76,534,775,015.67/317,744.64
  6. Step 6: Final answer
    x = 240,868.82

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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.