Home / 864,331.10-1,192,745.63-477,138.21

Finding the Fourth Proportional to 864,331.10, 1,192,745.63 and 477,138.21

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Solution

The fourth proportional to 864,331.10, 1,192,745.63 and 477,138.21 is: 658,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,331.10 : 1,192,745.63 = 477,138.21 : x
  2. Step 2: Convert to fraction form
    864,331.10/1,192,745.63 = 477,138.21/x
  3. Step 3: Cross multiply
    864,331.10x = 1,192,745.63 × 477,138.21
  4. Step 4: Simplify right side
    864,331.10x = 569,104,512,497.83
  5. Step 5: Solve for x
    x = 569,104,512,497.83/864,331.10
  6. Step 6: Final answer
    x = 658,433.46

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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.