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Finding the Fourth Proportional to 412,426.59, 618,686.62 and 370,046.29

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Solution

The fourth proportional to 412,426.59, 618,686.62 and 370,046.29 is: 555,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,426.59 : 618,686.62 = 370,046.29 : x
  2. Step 2: Convert to fraction form
    412,426.59/618,686.62 = 370,046.29/x
  3. Step 3: Cross multiply
    412,426.59x = 618,686.62 × 370,046.29
  4. Step 4: Simplify right side
    412,426.59x = 228,942,685,780.05
  5. Step 5: Solve for x
    x = 228,942,685,780.05/412,426.59
  6. Step 6: Final answer
    x = 555,111.36

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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.