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Finding the Fourth Proportional to 386,560.37, 579,701.62 and 133,772.23

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Solution

The fourth proportional to 386,560.37, 579,701.62 and 133,772.23 is: 200,610.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,560.37 : 579,701.62 = 133,772.23 : x
  2. Step 2: Convert to fraction form
    386,560.37/579,701.62 = 133,772.23/x
  3. Step 3: Cross multiply
    386,560.37x = 579,701.62 × 133,772.23
  4. Step 4: Simplify right side
    386,560.37x = 77,547,976,658.33
  5. Step 5: Solve for x
    x = 77,547,976,658.33/386,560.37
  6. Step 6: Final answer
    x = 200,610.26

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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.