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Finding the Fourth Proportional to 619,775.14, 855,291.47 and 344,133.59

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Solution

The fourth proportional to 619,775.14, 855,291.47 and 344,133.59 is: 474,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,775.14 : 855,291.47 = 344,133.59 : x
  2. Step 2: Convert to fraction form
    619,775.14/855,291.47 = 344,133.59/x
  3. Step 3: Cross multiply
    619,775.14x = 855,291.47 × 344,133.59
  4. Step 4: Simplify right side
    619,775.14x = 294,334,524,067.48
  5. Step 5: Solve for x
    x = 294,334,524,067.48/619,775.14
  6. Step 6: Final answer
    x = 474,905.34

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1.5x scale

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.