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Finding the Fourth Proportional to 320,432.39, 480,937.48 and 170,797.31

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Solution

The fourth proportional to 320,432.39, 480,937.48 and 170,797.31 is: 256,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,432.39 : 480,937.48 = 170,797.31 : x
  2. Step 2: Convert to fraction form
    320,432.39/480,937.48 = 170,797.31/x
  3. Step 3: Cross multiply
    320,432.39x = 480,937.48 × 170,797.31
  4. Step 4: Simplify right side
    320,432.39x = 82,142,824,603.50
  5. Step 5: Solve for x
    x = 82,142,824,603.50/320,432.39
  6. Step 6: Final answer
    x = 256,349.95

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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.