Home / 691,899.89-954,800.19-405,610.65

Finding the Fourth Proportional to 691,899.89, 954,800.19 and 405,610.65

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Solution

The fourth proportional to 691,899.89, 954,800.19 and 405,610.65 is: 559,730.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,899.89 : 954,800.19 = 405,610.65 : x
  2. Step 2: Convert to fraction form
    691,899.89/954,800.19 = 405,610.65/x
  3. Step 3: Cross multiply
    691,899.89x = 954,800.19 × 405,610.65
  4. Step 4: Simplify right side
    691,899.89x = 387,277,125,686.02
  5. Step 5: Solve for x
    x = 387,277,125,686.02/691,899.89
  6. Step 6: Final answer
    x = 559,730.00

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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.