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Finding the Fourth Proportional to 450,572.16, 621,764.88 and 256,951.44

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Solution

The fourth proportional to 450,572.16, 621,764.88 and 256,951.44 is: 354,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,572.16 : 621,764.88 = 256,951.44 : x
  2. Step 2: Convert to fraction form
    450,572.16/621,764.88 = 256,951.44/x
  3. Step 3: Cross multiply
    450,572.16x = 621,764.88 × 256,951.44
  4. Step 4: Simplify right side
    450,572.16x = 159,763,381,257.43
  5. Step 5: Solve for x
    x = 159,763,381,257.43/450,572.16
  6. Step 6: Final answer
    x = 354,578.90

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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.