Home / 858,786.78-1,183,176.09-664,526.46

Finding the Fourth Proportional to 858,786.78, 1,183,176.09 and 664,526.46

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Solution

The fourth proportional to 858,786.78, 1,183,176.09 and 664,526.46 is: 915,537.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,786.78 : 1,183,176.09 = 664,526.46 : x
  2. Step 2: Convert to fraction form
    858,786.78/1,183,176.09 = 664,526.46/x
  3. Step 3: Cross multiply
    858,786.78x = 1,183,176.09 × 664,526.46
  4. Step 4: Simplify right side
    858,786.78x = 786,251,818,644.34
  5. Step 5: Solve for x
    x = 786,251,818,644.34/858,786.78
  6. Step 6: Final answer
    x = 915,537.87

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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.