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Finding the Fourth Proportional to 482,904.90, 724,357.35 and 127,954.80

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Solution

The fourth proportional to 482,904.90, 724,357.35 and 127,954.80 is: 191,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,904.90 : 724,357.35 = 127,954.80 : x
  2. Step 2: Convert to fraction form
    482,904.90/724,357.35 = 127,954.80/x
  3. Step 3: Cross multiply
    482,904.90x = 724,357.35 × 127,954.80
  4. Step 4: Simplify right side
    482,904.90x = 92,684,999,847.78
  5. Step 5: Solve for x
    x = 92,684,999,847.78/482,904.90
  6. Step 6: Final answer
    x = 191,932.20

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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.