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Finding the Fourth Proportional to 492,351.60, 679,425.46 and 277,536.23

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Solution

The fourth proportional to 492,351.60, 679,425.46 and 277,536.23 is: 382,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,351.60 : 679,425.46 = 277,536.23 : x
  2. Step 2: Convert to fraction form
    492,351.60/679,425.46 = 277,536.23/x
  3. Step 3: Cross multiply
    492,351.60x = 679,425.46 × 277,536.23
  4. Step 4: Simplify right side
    492,351.60x = 188,565,180,734.42
  5. Step 5: Solve for x
    x = 188,565,180,734.42/492,351.60
  6. Step 6: Final answer
    x = 382,988.87

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1.5x scale

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.