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Finding the Fourth Proportional to 368,250.15, 508,180.32 and 207,105.20

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Solution

The fourth proportional to 368,250.15, 508,180.32 and 207,105.20 is: 285,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,250.15 : 508,180.32 = 207,105.20 : x
  2. Step 2: Convert to fraction form
    368,250.15/508,180.32 = 207,105.20/x
  3. Step 3: Cross multiply
    368,250.15x = 508,180.32 × 207,105.20
  4. Step 4: Simplify right side
    368,250.15x = 105,246,786,809.66
  5. Step 5: Solve for x
    x = 105,246,786,809.66/368,250.15
  6. Step 6: Final answer
    x = 285,802.43

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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.