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Finding the Fourth Proportional to 373,552.68, 515,500.31 and 212,407.77

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Solution

The fourth proportional to 373,552.68, 515,500.31 and 212,407.77 is: 293,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,552.68 : 515,500.31 = 212,407.77 : x
  2. Step 2: Convert to fraction form
    373,552.68/515,500.31 = 212,407.77/x
  3. Step 3: Cross multiply
    373,552.68x = 515,500.31 × 212,407.77
  4. Step 4: Simplify right side
    373,552.68x = 109,496,270,219.37
  5. Step 5: Solve for x
    x = 109,496,270,219.37/373,552.68
  6. Step 6: Final answer
    x = 293,121.36

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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.