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Finding the Fourth Proportional to 495,475.20, 743,212.80 and 495,475.20

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Solution

The fourth proportional to 495,475.20, 743,212.80 and 495,475.20 is: 743,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,475.20 : 743,212.80 = 495,475.20 : x
  2. Step 2: Convert to fraction form
    495,475.20/743,212.80 = 495,475.20/x
  3. Step 3: Cross multiply
    495,475.20x = 743,212.80 × 495,475.20
  4. Step 4: Simplify right side
    495,475.20x = 368,243,510,722.56
  5. Step 5: Solve for x
    x = 368,243,510,722.56/495,475.20
  6. Step 6: Final answer
    x = 743,212.80

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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.