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Finding the Fourth Proportional to 448,603.07, 619,047.54 and 254,983.86

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Solution

The fourth proportional to 448,603.07, 619,047.54 and 254,983.86 is: 351,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,603.07 : 619,047.54 = 254,983.86 : x
  2. Step 2: Convert to fraction form
    448,603.07/619,047.54 = 254,983.86/x
  3. Step 3: Cross multiply
    448,603.07x = 619,047.54 × 254,983.86
  4. Step 4: Simplify right side
    448,603.07x = 157,847,131,272.70
  5. Step 5: Solve for x
    x = 157,847,131,272.70/448,603.07
  6. Step 6: Final answer
    x = 351,863.69

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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.