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Finding the Fourth Proportional to 1,296,601.02, 1,943,326.79 and 917,632.50

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Solution

The fourth proportional to 1,296,601.02, 1,943,326.79 and 917,632.50 is: 1,375,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,601.02 : 1,943,326.79 = 917,632.50 : x
  2. Step 2: Convert to fraction form
    1,296,601.02/1,943,326.79 = 917,632.50/x
  3. Step 3: Cross multiply
    1,296,601.02x = 1,943,326.79 × 917,632.50
  4. Step 4: Simplify right side
    1,296,601.02x = 1,783,259,812,190.16
  5. Step 5: Solve for x
    x = 1,783,259,812,190.16/1,296,601.02
  6. Step 6: Final answer
    x = 1,375,334.27

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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.