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Finding the Fourth Proportional to 668,716.02, 922,828.01 and 382,242.26

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Solution

The fourth proportional to 668,716.02, 922,828.01 and 382,242.26 is: 527,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,716.02 : 922,828.01 = 382,242.26 : x
  2. Step 2: Convert to fraction form
    668,716.02/922,828.01 = 382,242.26/x
  3. Step 3: Cross multiply
    668,716.02x = 922,828.01 × 382,242.26
  4. Step 4: Simplify right side
    668,716.02x = 352,743,857,608.35
  5. Step 5: Solve for x
    x = 352,743,857,608.35/668,716.02
  6. Step 6: Final answer
    x = 527,494.25

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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.