Home / 449,373.11-619,942.29-258,345.95

Finding the Fourth Proportional to 449,373.11, 619,942.29 and 258,345.95

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Solution

The fourth proportional to 449,373.11, 619,942.29 and 258,345.95 is: 356,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,373.11 : 619,942.29 = 258,345.95 : x
  2. Step 2: Convert to fraction form
    449,373.11/619,942.29 = 258,345.95/x
  3. Step 3: Cross multiply
    449,373.11x = 619,942.29 × 258,345.95
  4. Step 4: Simplify right side
    449,373.11x = 160,159,579,855.23
  5. Step 5: Solve for x
    x = 160,159,579,855.23/449,373.11
  6. Step 6: Final answer
    x = 356,406.68

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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.