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Finding the Fourth Proportional to 495,057.72, 683,161.38 and 268,698.36

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Solution

The fourth proportional to 495,057.72, 683,161.38 and 268,698.36 is: 370,793.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,057.72 : 683,161.38 = 268,698.36 : x
  2. Step 2: Convert to fraction form
    495,057.72/683,161.38 = 268,698.36/x
  3. Step 3: Cross multiply
    495,057.72x = 683,161.38 × 268,698.36
  4. Step 4: Simplify right side
    495,057.72x = 183,564,342,421.34
  5. Step 5: Solve for x
    x = 183,564,342,421.34/495,057.72
  6. Step 6: Final answer
    x = 370,793.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.