Home / 619,848.20-855,344.07-344,221.60

Finding the Fourth Proportional to 619,848.20, 855,344.07 and 344,221.60

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Solution

The fourth proportional to 619,848.20, 855,344.07 and 344,221.60 is: 475,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,848.20 : 855,344.07 = 344,221.60 : x
  2. Step 2: Convert to fraction form
    619,848.20/855,344.07 = 344,221.60/x
  3. Step 3: Cross multiply
    619,848.20x = 855,344.07 × 344,221.60
  4. Step 4: Simplify right side
    619,848.20x = 294,427,902,187.55
  5. Step 5: Solve for x
    x = 294,427,902,187.55/619,848.20
  6. Step 6: Final answer
    x = 475,000.02

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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.