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Finding the Fourth Proportional to 461,034.18, 691,813.71 and 303,336.90

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Solution

The fourth proportional to 461,034.18, 691,813.71 and 303,336.90 is: 455,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,034.18 : 691,813.71 = 303,336.90 : x
  2. Step 2: Convert to fraction form
    461,034.18/691,813.71 = 303,336.90/x
  3. Step 3: Cross multiply
    461,034.18x = 691,813.71 × 303,336.90
  4. Step 4: Simplify right side
    461,034.18x = 209,852,626,168.90
  5. Step 5: Solve for x
    x = 209,852,626,168.90/461,034.18
  6. Step 6: Final answer
    x = 455,178.02

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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.