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Finding the Fourth Proportional to 996,937.30, 1,495,405.95 and 919,954.90

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Solution

The fourth proportional to 996,937.30, 1,495,405.95 and 919,954.90 is: 1,379,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,937.30 : 1,495,405.95 = 919,954.90 : x
  2. Step 2: Convert to fraction form
    996,937.30/1,495,405.95 = 919,954.90/x
  3. Step 3: Cross multiply
    996,937.30x = 1,495,405.95 × 919,954.90
  4. Step 4: Simplify right side
    996,937.30x = 1,375,706,031,191.66
  5. Step 5: Solve for x
    x = 1,375,706,031,191.66/996,937.30
  6. Step 6: Final answer
    x = 1,379,932.35

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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.