Home / 691,045.38-953,712.09-419,104.26

Finding the Fourth Proportional to 691,045.38, 953,712.09 and 419,104.26

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Solution

The fourth proportional to 691,045.38, 953,712.09 and 419,104.26 is: 578,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,045.38 : 953,712.09 = 419,104.26 : x
  2. Step 2: Convert to fraction form
    691,045.38/953,712.09 = 419,104.26/x
  3. Step 3: Cross multiply
    691,045.38x = 953,712.09 × 419,104.26
  4. Step 4: Simplify right side
    691,045.38x = 399,704,799,732.50
  5. Step 5: Solve for x
    x = 399,704,799,732.50/691,045.38
  6. Step 6: Final answer
    x = 578,406.01

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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.