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Finding the Fourth Proportional to 456,225.28, 629,578.56 and 255,060.16

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Solution

The fourth proportional to 456,225.28, 629,578.56 and 255,060.16 is: 351,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,225.28 : 629,578.56 = 255,060.16 : x
  2. Step 2: Convert to fraction form
    456,225.28/629,578.56 = 255,060.16/x
  3. Step 3: Cross multiply
    456,225.28x = 629,578.56 × 255,060.16
  4. Step 4: Simplify right side
    456,225.28x = 160,580,408,246.17
  5. Step 5: Solve for x
    x = 160,580,408,246.17/456,225.28
  6. Step 6: Final answer
    x = 351,976.13

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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.