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Finding the Fourth Proportional to 401,540.99, 554,125.01 and 248,548.68

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Solution

The fourth proportional to 401,540.99, 554,125.01 and 248,548.68 is: 342,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,540.99 : 554,125.01 = 248,548.68 : x
  2. Step 2: Convert to fraction form
    401,540.99/554,125.01 = 248,548.68/x
  3. Step 3: Cross multiply
    401,540.99x = 554,125.01 × 248,548.68
  4. Step 4: Simplify right side
    401,540.99x = 137,727,038,547.74
  5. Step 5: Solve for x
    x = 137,727,038,547.74/401,540.99
  6. Step 6: Final answer
    x = 342,996.22

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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.