Home / 500,177.98-690,181.23-285,305.23

Finding the Fourth Proportional to 500,177.98, 690,181.23 and 285,305.23

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Solution

The fourth proportional to 500,177.98, 690,181.23 and 285,305.23 is: 393,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,177.98 : 690,181.23 = 285,305.23 : x
  2. Step 2: Convert to fraction form
    500,177.98/690,181.23 = 285,305.23/x
  3. Step 3: Cross multiply
    500,177.98x = 690,181.23 × 285,305.23
  4. Step 4: Simplify right side
    500,177.98x = 196,912,314,566.83
  5. Step 5: Solve for x
    x = 196,912,314,566.83/500,177.98
  6. Step 6: Final answer
    x = 393,684.49

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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.