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Finding the Fourth Proportional to 619,703.13, 855,171.12 and 344,055.01

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Solution

The fourth proportional to 619,703.13, 855,171.12 and 344,055.01 is: 474,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,703.13 : 855,171.12 = 344,055.01 : x
  2. Step 2: Convert to fraction form
    619,703.13/855,171.12 = 344,055.01/x
  3. Step 3: Cross multiply
    619,703.13x = 855,171.12 × 344,055.01
  4. Step 4: Simplify right side
    619,703.13x = 294,225,907,383.17
  5. Step 5: Solve for x
    x = 294,225,907,383.17/619,703.13
  6. Step 6: Final answer
    x = 474,785.26

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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.