Home / 418,904.06-578,084.85-227,918.21

Finding the Fourth Proportional to 418,904.06, 578,084.85 and 227,918.21

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Solution

The fourth proportional to 418,904.06, 578,084.85 and 227,918.21 is: 314,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,904.06 : 578,084.85 = 227,918.21 : x
  2. Step 2: Convert to fraction form
    418,904.06/578,084.85 = 227,918.21/x
  3. Step 3: Cross multiply
    418,904.06x = 578,084.85 × 227,918.21
  4. Step 4: Simplify right side
    418,904.06x = 131,756,061,349.69
  5. Step 5: Solve for x
    x = 131,756,061,349.69/418,904.06
  6. Step 6: Final answer
    x = 314,525.63

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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.