Home / 419,244.06-578,916.47-405,686.87

Finding the Fourth Proportional to 419,244.06, 578,916.47 and 405,686.87

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Solution

The fourth proportional to 419,244.06, 578,916.47 and 405,686.87 is: 560,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,244.06 : 578,916.47 = 405,686.87 : x
  2. Step 2: Convert to fraction form
    419,244.06/578,916.47 = 405,686.87/x
  3. Step 3: Cross multiply
    419,244.06x = 578,916.47 × 405,686.87
  4. Step 4: Simplify right side
    419,244.06x = 234,858,807,953.67
  5. Step 5: Solve for x
    x = 234,858,807,953.67/419,244.06
  6. Step 6: Final answer
    x = 560,195.91

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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.