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Finding the Fourth Proportional to 907,508.40, 1,361,262.60 and 866,174.10

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Solution

The fourth proportional to 907,508.40, 1,361,262.60 and 866,174.10 is: 1,299,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,508.40 : 1,361,262.60 = 866,174.10 : x
  2. Step 2: Convert to fraction form
    907,508.40/1,361,262.60 = 866,174.10/x
  3. Step 3: Cross multiply
    907,508.40x = 1,361,262.60 × 866,174.10
  4. Step 4: Simplify right side
    907,508.40x = 1,179,090,407,418.66
  5. Step 5: Solve for x
    x = 1,179,090,407,418.66/907,508.40
  6. Step 6: Final answer
    x = 1,299,261.15

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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.