Home / 388,932.80-583,399.20-262,961.60

Finding the Fourth Proportional to 388,932.80, 583,399.20 and 262,961.60

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Solution

The fourth proportional to 388,932.80, 583,399.20 and 262,961.60 is: 394,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,932.80 : 583,399.20 = 262,961.60 : x
  2. Step 2: Convert to fraction form
    388,932.80/583,399.20 = 262,961.60/x
  3. Step 3: Cross multiply
    388,932.80x = 583,399.20 × 262,961.60
  4. Step 4: Simplify right side
    388,932.80x = 153,411,587,070.72
  5. Step 5: Solve for x
    x = 153,411,587,070.72/388,932.80
  6. Step 6: Final answer
    x = 394,442.40

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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.