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Finding the Fourth Proportional to 619,881.02, 855,448.44 and 347,968.52

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Solution

The fourth proportional to 619,881.02, 855,448.44 and 347,968.52 is: 480,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,881.02 : 855,448.44 = 347,968.52 : x
  2. Step 2: Convert to fraction form
    619,881.02/855,448.44 = 347,968.52/x
  3. Step 3: Cross multiply
    619,881.02x = 855,448.44 × 347,968.52
  4. Step 4: Simplify right side
    619,881.02x = 297,669,127,603.11
  5. Step 5: Solve for x
    x = 297,669,127,603.11/619,881.02
  6. Step 6: Final answer
    x = 480,203.65

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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.