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Finding the Fourth Proportional to 668,081, 999,610.50 and 468,790.22

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Solution

The fourth proportional to 668,081, 999,610.50 and 468,790.22 is: 701,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,081 : 999,610.50 = 468,790.22 : x
  2. Step 2: Convert to fraction form
    668,081/999,610.50 = 468,790.22/x
  3. Step 3: Cross multiply
    668,081x = 999,610.50 × 468,790.22
  4. Step 4: Simplify right side
    668,081x = 468,607,626,209.31
  5. Step 5: Solve for x
    x = 468,607,626,209.31/668,081
  6. Step 6: Final answer
    x = 701,423.37

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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.