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Finding the Fourth Proportional to 621,740.94, 858,033.99 and 367,086.66

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Solution

The fourth proportional to 621,740.94, 858,033.99 and 367,086.66 is: 506,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,740.94 : 858,033.99 = 367,086.66 : x
  2. Step 2: Convert to fraction form
    621,740.94/858,033.99 = 367,086.66/x
  3. Step 3: Cross multiply
    621,740.94x = 858,033.99 × 367,086.66
  4. Step 4: Simplify right side
    621,740.94x = 314,972,831,555.57
  5. Step 5: Solve for x
    x = 314,972,831,555.57/621,740.94
  6. Step 6: Final answer
    x = 506,598.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.