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Finding the Fourth Proportional to 668,561.07, 922,516.77 and 382,025.79

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Solution

The fourth proportional to 668,561.07, 922,516.77 and 382,025.79 is: 527,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,561.07 : 922,516.77 = 382,025.79 : x
  2. Step 2: Convert to fraction form
    668,561.07/922,516.77 = 382,025.79/x
  3. Step 3: Cross multiply
    668,561.07x = 922,516.77 × 382,025.79
  4. Step 4: Simplify right side
    668,561.07x = 352,425,197,847.50
  5. Step 5: Solve for x
    x = 352,425,197,847.50/668,561.07
  6. Step 6: Final answer
    x = 527,139.87

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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.