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Finding the Fourth Proportional to 479,257.45, 661,377.52 and 264,397.45

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Solution

The fourth proportional to 479,257.45, 661,377.52 and 264,397.45 is: 364,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,257.45 : 661,377.52 = 264,397.45 : x
  2. Step 2: Convert to fraction form
    479,257.45/661,377.52 = 264,397.45/x
  3. Step 3: Cross multiply
    479,257.45x = 661,377.52 × 264,397.45
  4. Step 4: Simplify right side
    479,257.45x = 174,866,529,775.32
  5. Step 5: Solve for x
    x = 174,866,529,775.32/479,257.45
  6. Step 6: Final answer
    x = 364,869.72

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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.