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Finding the Fourth Proportional to 2,652,415.07, 3,972,640.75 and 1,857,246.57

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Solution

The fourth proportional to 2,652,415.07, 3,972,640.75 and 1,857,246.57 is: 2,781,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,415.07 : 3,972,640.75 = 1,857,246.57 : x
  2. Step 2: Convert to fraction form
    2,652,415.07/3,972,640.75 = 1,857,246.57/x
  3. Step 3: Cross multiply
    2,652,415.07x = 3,972,640.75 × 1,857,246.57
  4. Step 4: Simplify right side
    2,652,415.07x = 7,378,173,402,136.61
  5. Step 5: Solve for x
    x = 7,378,173,402,136.61/2,652,415.07
  6. Step 6: Final answer
    x = 2,781,681.31

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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.