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Finding the Fourth Proportional to 612,229.51, 918,353.43 and 233,171.18

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Solution

The fourth proportional to 612,229.51, 918,353.43 and 233,171.18 is: 349,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,229.51 : 918,353.43 = 233,171.18 : x
  2. Step 2: Convert to fraction form
    612,229.51/918,353.43 = 233,171.18/x
  3. Step 3: Cross multiply
    612,229.51x = 918,353.43 × 233,171.18
  4. Step 4: Simplify right side
    612,229.51x = 214,133,552,930.15
  5. Step 5: Solve for x
    x = 214,133,552,930.15/612,229.51
  6. Step 6: Final answer
    x = 349,760.26

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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.