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Finding the Fourth Proportional to 996,905.55, 1,495,358.33 and 919,923.15

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Solution

The fourth proportional to 996,905.55, 1,495,358.33 and 919,923.15 is: 1,379,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,905.55 : 1,495,358.33 = 919,923.15 : x
  2. Step 2: Convert to fraction form
    996,905.55/1,495,358.33 = 919,923.15/x
  3. Step 3: Cross multiply
    996,905.55x = 1,495,358.33 × 919,923.15
  4. Step 4: Simplify right side
    996,905.55x = 1,375,614,745,312.34
  5. Step 5: Solve for x
    x = 1,375,614,745,312.34/996,905.55
  6. Step 6: Final answer
    x = 1,379,884.73

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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.