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Finding the Fourth Proportional to 399,547.53, 599,616.14 and 189,185.13

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Solution

The fourth proportional to 399,547.53, 599,616.14 and 189,185.13 is: 283,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,547.53 : 599,616.14 = 189,185.13 : x
  2. Step 2: Convert to fraction form
    399,547.53/599,616.14 = 189,185.13/x
  3. Step 3: Cross multiply
    399,547.53x = 599,616.14 × 189,185.13
  4. Step 4: Simplify right side
    399,547.53x = 113,438,456,450.07
  5. Step 5: Solve for x
    x = 113,438,456,450.07/399,547.53
  6. Step 6: Final answer
    x = 283,917.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.