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Finding the Fourth Proportional to 668,894.79, 922,812.06 and 382,261.11

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Solution

The fourth proportional to 668,894.79, 922,812.06 and 382,261.11 is: 527,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,894.79 : 922,812.06 = 382,261.11 : x
  2. Step 2: Convert to fraction form
    668,894.79/922,812.06 = 382,261.11/x
  3. Step 3: Cross multiply
    668,894.79x = 922,812.06 × 382,261.11
  4. Step 4: Simplify right side
    668,894.79x = 352,755,162,376.99
  5. Step 5: Solve for x
    x = 352,755,162,376.99/668,894.79
  6. Step 6: Final answer
    x = 527,370.17

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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.