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Finding the Fourth Proportional to 412,534.52, 618,802.32 and 113,017.73

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Solution

The fourth proportional to 412,534.52, 618,802.32 and 113,017.73 is: 169,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,534.52 : 618,802.32 = 113,017.73 : x
  2. Step 2: Convert to fraction form
    412,534.52/618,802.32 = 113,017.73/x
  3. Step 3: Cross multiply
    412,534.52x = 618,802.32 × 113,017.73
  4. Step 4: Simplify right side
    412,534.52x = 69,935,633,525.13
  5. Step 5: Solve for x
    x = 69,935,633,525.13/412,534.52
  6. Step 6: Final answer
    x = 169,526.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.