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Finding the Fourth Proportional to 325,801.70, 488,702.55 and 247,069.70

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Solution

The fourth proportional to 325,801.70, 488,702.55 and 247,069.70 is: 370,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,801.70 : 488,702.55 = 247,069.70 : x
  2. Step 2: Convert to fraction form
    325,801.70/488,702.55 = 247,069.70/x
  3. Step 3: Cross multiply
    325,801.70x = 488,702.55 × 247,069.70
  4. Step 4: Simplify right side
    325,801.70x = 120,743,592,417.74
  5. Step 5: Solve for x
    x = 120,743,592,417.74/325,801.70
  6. Step 6: Final answer
    x = 370,604.55

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1.5x scale

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.