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Finding the Fourth Proportional to 404,657.70, 606,986.55 and 404,657.70

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Solution

The fourth proportional to 404,657.70, 606,986.55 and 404,657.70 is: 606,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,657.70 : 606,986.55 = 404,657.70 : x
  2. Step 2: Convert to fraction form
    404,657.70/606,986.55 = 404,657.70/x
  3. Step 3: Cross multiply
    404,657.70x = 606,986.55 × 404,657.70
  4. Step 4: Simplify right side
    404,657.70x = 245,621,781,253.94
  5. Step 5: Solve for x
    x = 245,621,781,253.94/404,657.70
  6. Step 6: Final answer
    x = 606,986.55

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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.