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Finding the Fourth Proportional to 884,507.70, 1,326,761.55 and 869,745.45

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Solution

The fourth proportional to 884,507.70, 1,326,761.55 and 869,745.45 is: 1,304,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,507.70 : 1,326,761.55 = 869,745.45 : x
  2. Step 2: Convert to fraction form
    884,507.70/1,326,761.55 = 869,745.45/x
  3. Step 3: Cross multiply
    884,507.70x = 1,326,761.55 × 869,745.45
  4. Step 4: Simplify right side
    884,507.70x = 1,153,944,821,347.45
  5. Step 5: Solve for x
    x = 1,153,944,821,347.45/884,507.70
  6. Step 6: Final answer
    x = 1,304,618.18

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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.