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Finding the Fourth Proportional to 386,240.02, 579,520.01 and 208,538.17

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Solution

The fourth proportional to 386,240.02, 579,520.01 and 208,538.17 is: 312,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,240.02 : 579,520.01 = 208,538.17 : x
  2. Step 2: Convert to fraction form
    386,240.02/579,520.01 = 208,538.17/x
  3. Step 3: Cross multiply
    386,240.02x = 579,520.01 × 208,538.17
  4. Step 4: Simplify right side
    386,240.02x = 120,852,042,363.78
  5. Step 5: Solve for x
    x = 120,852,042,363.78/386,240.02
  6. Step 6: Final answer
    x = 312,893.63

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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.