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Finding the Fourth Proportional to 545,700.24, 753,079.50 and 303,986.70

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Solution

The fourth proportional to 545,700.24, 753,079.50 and 303,986.70 is: 419,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,700.24 : 753,079.50 = 303,986.70 : x
  2. Step 2: Convert to fraction form
    545,700.24/753,079.50 = 303,986.70/x
  3. Step 3: Cross multiply
    545,700.24x = 753,079.50 × 303,986.70
  4. Step 4: Simplify right side
    545,700.24x = 228,926,152,042.65
  5. Step 5: Solve for x
    x = 228,926,152,042.65/545,700.24
  6. Step 6: Final answer
    x = 419,508.98

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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.