Home / 419,292.86-578,606.09-238,001.49

Finding the Fourth Proportional to 419,292.86, 578,606.09 and 238,001.49

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Solution

The fourth proportional to 419,292.86, 578,606.09 and 238,001.49 is: 328,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,292.86 : 578,606.09 = 238,001.49 : x
  2. Step 2: Convert to fraction form
    419,292.86/578,606.09 = 238,001.49/x
  3. Step 3: Cross multiply
    419,292.86x = 578,606.09 × 238,001.49
  4. Step 4: Simplify right side
    419,292.86x = 137,709,110,353.07
  5. Step 5: Solve for x
    x = 137,709,110,353.07/419,292.86
  6. Step 6: Final answer
    x = 328,431.81

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1.5x scale

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.