Home / 863,600.40-1,294,234.20-578,480.40

Finding the Fourth Proportional to 863,600.40, 1,294,234.20 and 578,480.40

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Solution

The fourth proportional to 863,600.40, 1,294,234.20 and 578,480.40 is: 866,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,600.40 : 1,294,234.20 = 578,480.40 : x
  2. Step 2: Convert to fraction form
    863,600.40/1,294,234.20 = 578,480.40/x
  3. Step 3: Cross multiply
    863,600.40x = 1,294,234.20 × 578,480.40
  4. Step 4: Simplify right side
    863,600.40x = 748,689,117,709.68
  5. Step 5: Solve for x
    x = 748,689,117,709.68/863,600.40
  6. Step 6: Final answer
    x = 866,939.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.