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Finding the Fourth Proportional to 677,222.66, 934,662.54 and 419,182.43

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Solution

The fourth proportional to 677,222.66, 934,662.54 and 419,182.43 is: 578,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,222.66 : 934,662.54 = 419,182.43 : x
  2. Step 2: Convert to fraction form
    677,222.66/934,662.54 = 419,182.43/x
  3. Step 3: Cross multiply
    677,222.66x = 934,662.54 × 419,182.43
  4. Step 4: Simplify right side
    677,222.66x = 391,794,114,747.17
  5. Step 5: Solve for x
    x = 391,794,114,747.17/677,222.66
  6. Step 6: Final answer
    x = 578,530.72

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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.