Home / 642,647.98-963,777.87-193,249.55

Finding the Fourth Proportional to 642,647.98, 963,777.87 and 193,249.55

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Solution

The fourth proportional to 642,647.98, 963,777.87 and 193,249.55 is: 289,815.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,647.98 : 963,777.87 = 193,249.55 : x
  2. Step 2: Convert to fraction form
    642,647.98/963,777.87 = 193,249.55/x
  3. Step 3: Cross multiply
    642,647.98x = 963,777.87 × 193,249.55
  4. Step 4: Simplify right side
    642,647.98x = 186,249,639,677.46
  5. Step 5: Solve for x
    x = 186,249,639,677.46/642,647.98
  6. Step 6: Final answer
    x = 289,815.96

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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.