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Finding the Fourth Proportional to 668,156.79, 922,156.21 and 525,986.67

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Solution

The fourth proportional to 668,156.79, 922,156.21 and 525,986.67 is: 725,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,156.79 : 922,156.21 = 525,986.67 : x
  2. Step 2: Convert to fraction form
    668,156.79/922,156.21 = 525,986.67/x
  3. Step 3: Cross multiply
    668,156.79x = 922,156.21 × 525,986.67
  4. Step 4: Simplify right side
    668,156.79x = 485,041,871,487.79
  5. Step 5: Solve for x
    x = 485,041,871,487.79/668,156.79
  6. Step 6: Final answer
    x = 725,940.20

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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.