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Finding the Fourth Proportional to 374,644.10, 561,966.15 and 349,760.90

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Solution

The fourth proportional to 374,644.10, 561,966.15 and 349,760.90 is: 524,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,644.10 : 561,966.15 = 349,760.90 : x
  2. Step 2: Convert to fraction form
    374,644.10/561,966.15 = 349,760.90/x
  3. Step 3: Cross multiply
    374,644.10x = 561,966.15 × 349,760.90
  4. Step 4: Simplify right side
    374,644.10x = 196,553,786,393.54
  5. Step 5: Solve for x
    x = 196,553,786,393.54/374,644.10
  6. Step 6: Final answer
    x = 524,641.35

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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.