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Finding the Fourth Proportional to 668,662.29, 922,817.61 and 382,126.82

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Solution

The fourth proportional to 668,662.29, 922,817.61 and 382,126.82 is: 527,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,662.29 : 922,817.61 = 382,126.82 : x
  2. Step 2: Convert to fraction form
    668,662.29/922,817.61 = 382,126.82/x
  3. Step 3: Cross multiply
    668,662.29x = 922,817.61 × 382,126.82
  4. Step 4: Simplify right side
    668,662.29x = 352,633,354,135.21
  5. Step 5: Solve for x
    x = 352,633,354,135.21/668,662.29
  6. Step 6: Final answer
    x = 527,371.38

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1.5x scale

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.