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Finding the Fourth Proportional to 404,823.29, 558,703.51 and 336,720.11

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Solution

The fourth proportional to 404,823.29, 558,703.51 and 336,720.11 is: 464,713.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,823.29 : 558,703.51 = 336,720.11 : x
  2. Step 2: Convert to fraction form
    404,823.29/558,703.51 = 336,720.11/x
  3. Step 3: Cross multiply
    404,823.29x = 558,703.51 × 336,720.11
  4. Step 4: Simplify right side
    404,823.29x = 188,126,703,709.27
  5. Step 5: Solve for x
    x = 188,126,703,709.27/404,823.29
  6. Step 6: Final answer
    x = 464,713.15

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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.