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Finding the Fourth Proportional to 373,293.40, 559,502.70 and 279,689.80

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Solution

The fourth proportional to 373,293.40, 559,502.70 and 279,689.80 is: 419,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,293.40 : 559,502.70 = 279,689.80 : x
  2. Step 2: Convert to fraction form
    373,293.40/559,502.70 = 279,689.80/x
  3. Step 3: Cross multiply
    373,293.40x = 559,502.70 × 279,689.80
  4. Step 4: Simplify right side
    373,293.40x = 156,487,198,262.46
  5. Step 5: Solve for x
    x = 156,487,198,262.46/373,293.40
  6. Step 6: Final answer
    x = 419,206.98

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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.