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Finding the Fourth Proportional to 610,501.50, 915,753.87 and 189,777.78

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Solution

The fourth proportional to 610,501.50, 915,753.87 and 189,777.78 is: 284,667.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,501.50 : 915,753.87 = 189,777.78 : x
  2. Step 2: Convert to fraction form
    610,501.50/915,753.87 = 189,777.78/x
  3. Step 3: Cross multiply
    610,501.50x = 915,753.87 × 189,777.78
  4. Step 4: Simplify right side
    610,501.50x = 173,789,736,475.01
  5. Step 5: Solve for x
    x = 173,789,736,475.01/610,501.50
  6. Step 6: Final answer
    x = 284,667.17

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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.