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Finding the Fourth Proportional to 457,332.25, 682,735.69 and 426,940.39

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Solution

The fourth proportional to 457,332.25, 682,735.69 and 426,940.39 is: 637,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,332.25 : 682,735.69 = 426,940.39 : x
  2. Step 2: Convert to fraction form
    457,332.25/682,735.69 = 426,940.39/x
  3. Step 3: Cross multiply
    457,332.25x = 682,735.69 × 426,940.39
  4. Step 4: Simplify right side
    457,332.25x = 291,487,436,207.14
  5. Step 5: Solve for x
    x = 291,487,436,207.14/457,332.25
  6. Step 6: Final answer
    x = 637,364.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.