Home / 619,829.46-855,426.15-378,273.96

Finding the Fourth Proportional to 619,829.46, 855,426.15 and 378,273.96

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Solution

The fourth proportional to 619,829.46, 855,426.15 and 378,273.96 is: 522,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,829.46 : 855,426.15 = 378,273.96 : x
  2. Step 2: Convert to fraction form
    619,829.46/855,426.15 = 378,273.96/x
  3. Step 3: Cross multiply
    619,829.46x = 855,426.15 × 378,273.96
  4. Step 4: Simplify right side
    619,829.46x = 323,585,437,248.05
  5. Step 5: Solve for x
    x = 323,585,437,248.05/619,829.46
  6. Step 6: Final answer
    x = 522,055.59

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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.