Home / 690,777.80-1,036,166.70-192,141.80

Finding the Fourth Proportional to 690,777.80, 1,036,166.70 and 192,141.80

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Solution

The fourth proportional to 690,777.80, 1,036,166.70 and 192,141.80 is: 288,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,777.80 : 1,036,166.70 = 192,141.80 : x
  2. Step 2: Convert to fraction form
    690,777.80/1,036,166.70 = 192,141.80/x
  3. Step 3: Cross multiply
    690,777.80x = 1,036,166.70 × 192,141.80
  4. Step 4: Simplify right side
    690,777.80x = 199,090,934,838.06
  5. Step 5: Solve for x
    x = 199,090,934,838.06/690,777.80
  6. Step 6: Final answer
    x = 288,212.70

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Similar ratio
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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.