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Finding the Fourth Proportional to 548,592.25, 757,209.51 and 319,193.86

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Solution

The fourth proportional to 548,592.25, 757,209.51 and 319,193.86 is: 440,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,592.25 : 757,209.51 = 319,193.86 : x
  2. Step 2: Convert to fraction form
    548,592.25/757,209.51 = 319,193.86/x
  3. Step 3: Cross multiply
    548,592.25x = 757,209.51 × 319,193.86
  4. Step 4: Simplify right side
    548,592.25x = 241,696,626,325.61
  5. Step 5: Solve for x
    x = 241,696,626,325.61/548,592.25
  6. Step 6: Final answer
    x = 440,576.09

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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.