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Finding the Fourth Proportional to 317,759.60, 438,510.84 and 174,521.36

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Solution

The fourth proportional to 317,759.60, 438,510.84 and 174,521.36 is: 240,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,759.60 : 438,510.84 = 174,521.36 : x
  2. Step 2: Convert to fraction form
    317,759.60/438,510.84 = 174,521.36/x
  3. Step 3: Cross multiply
    317,759.60x = 438,510.84 × 174,521.36
  4. Step 4: Simplify right side
    317,759.60x = 76,529,508,171.54
  5. Step 5: Solve for x
    x = 76,529,508,171.54/317,759.60
  6. Step 6: Final answer
    x = 240,840.90

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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.