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Finding the Fourth Proportional to 504,418.72, 754,397.20 and 448,650.08

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Solution

The fourth proportional to 504,418.72, 754,397.20 and 448,650.08 is: 670,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,418.72 : 754,397.20 = 448,650.08 : x
  2. Step 2: Convert to fraction form
    504,418.72/754,397.20 = 448,650.08/x
  3. Step 3: Cross multiply
    504,418.72x = 754,397.20 × 448,650.08
  4. Step 4: Simplify right side
    504,418.72x = 338,460,364,131.78
  5. Step 5: Solve for x
    x = 338,460,364,131.78/504,418.72
  6. Step 6: Final answer
    x = 670,990.89

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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.