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Finding the Fourth Proportional to 668,161.34, 922,162.49 and 525,991.22

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Solution

The fourth proportional to 668,161.34, 922,162.49 and 525,991.22 is: 725,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,161.34 : 922,162.49 = 525,991.22 : x
  2. Step 2: Convert to fraction form
    668,161.34/922,162.49 = 525,991.22/x
  3. Step 3: Cross multiply
    668,161.34x = 922,162.49 × 525,991.22
  4. Step 4: Simplify right side
    668,161.34x = 485,049,365,912.57
  5. Step 5: Solve for x
    x = 485,049,365,912.57/668,161.34
  6. Step 6: Final answer
    x = 725,946.48

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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.