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Finding the Fourth Proportional to 935,781.30, 1,401,047.55 and 909,537.30

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Solution

The fourth proportional to 935,781.30, 1,401,047.55 and 909,537.30 is: 1,361,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,781.30 : 1,401,047.55 = 909,537.30 : x
  2. Step 2: Convert to fraction form
    935,781.30/1,401,047.55 = 909,537.30/x
  3. Step 3: Cross multiply
    935,781.30x = 1,401,047.55 × 909,537.30
  4. Step 4: Simplify right side
    935,781.30x = 1,274,305,005,798.62
  5. Step 5: Solve for x
    x = 1,274,305,005,798.62/935,781.30
  6. Step 6: Final answer
    x = 1,361,755.15

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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.