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Finding the Fourth Proportional to 1,034,222.89, 1,423,978.85 and 878,846.46

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Solution

The fourth proportional to 1,034,222.89, 1,423,978.85 and 878,846.46 is: 1,210,047.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034,222.89 : 1,423,978.85 = 878,846.46 : x
  2. Step 2: Convert to fraction form
    1,034,222.89/1,423,978.85 = 878,846.46/x
  3. Step 3: Cross multiply
    1,034,222.89x = 1,423,978.85 × 878,846.46
  4. Step 4: Simplify right side
    1,034,222.89x = 1,251,458,776,304.45
  5. Step 5: Solve for x
    x = 1,251,458,776,304.45/1,034,222.89
  6. Step 6: Final answer
    x = 1,210,047.46

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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.