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Finding the Fourth Proportional to 372,272.70, 558,409.05 and 268,074.30

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Solution

The fourth proportional to 372,272.70, 558,409.05 and 268,074.30 is: 402,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,272.70 : 558,409.05 = 268,074.30 : x
  2. Step 2: Convert to fraction form
    372,272.70/558,409.05 = 268,074.30/x
  3. Step 3: Cross multiply
    372,272.70x = 558,409.05 × 268,074.30
  4. Step 4: Simplify right side
    372,272.70x = 149,695,115,192.42
  5. Step 5: Solve for x
    x = 149,695,115,192.42/372,272.70
  6. Step 6: Final answer
    x = 402,111.45

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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.