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Finding the Fourth Proportional to 3,044,978, 4,567,291.32 and 915,016.40

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Solution

The fourth proportional to 3,044,978, 4,567,291.32 and 915,016.40 is: 1,372,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,044,978 : 4,567,291.32 = 915,016.40 : x
  2. Step 2: Convert to fraction form
    3,044,978/4,567,291.32 = 915,016.40/x
  3. Step 3: Cross multiply
    3,044,978x = 4,567,291.32 × 915,016.40
  4. Step 4: Simplify right side
    3,044,978x = 4,179,146,461,377.65
  5. Step 5: Solve for x
    x = 4,179,146,461,377.65/3,044,978
  6. Step 6: Final answer
    x = 1,372,471.81

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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.