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Finding the Fourth Proportional to 606,435.20, 908,923.80 and 251,266.40

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Solution

The fourth proportional to 606,435.20, 908,923.80 and 251,266.40 is: 376,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,435.20 : 908,923.80 = 251,266.40 : x
  2. Step 2: Convert to fraction form
    606,435.20/908,923.80 = 251,266.40/x
  3. Step 3: Cross multiply
    606,435.20x = 908,923.80 × 251,266.40
  4. Step 4: Simplify right side
    606,435.20x = 228,382,011,100.32
  5. Step 5: Solve for x
    x = 228,382,011,100.32/606,435.20
  6. Step 6: Final answer
    x = 376,597.55

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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.