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Finding the Fourth Proportional to 668,725.30, 922,833.21 and 366,919.30

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Solution

The fourth proportional to 668,725.30, 922,833.21 and 366,919.30 is: 506,344.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,725.30 : 922,833.21 = 366,919.30 : x
  2. Step 2: Convert to fraction form
    668,725.30/922,833.21 = 366,919.30/x
  3. Step 3: Cross multiply
    668,725.30x = 922,833.21 × 366,919.30
  4. Step 4: Simplify right side
    668,725.30x = 338,605,315,429.95
  5. Step 5: Solve for x
    x = 338,605,315,429.95/668,725.30
  6. Step 6: Final answer
    x = 506,344.41

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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.