Home / 838,253.88-1,257,392.34-239,214.78

Finding the Fourth Proportional to 838,253.88, 1,257,392.34 and 239,214.78

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Solution

The fourth proportional to 838,253.88, 1,257,392.34 and 239,214.78 is: 358,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,253.88 : 1,257,392.34 = 239,214.78 : x
  2. Step 2: Convert to fraction form
    838,253.88/1,257,392.34 = 239,214.78/x
  3. Step 3: Cross multiply
    838,253.88x = 1,257,392.34 × 239,214.78
  4. Step 4: Simplify right side
    838,253.88x = 300,786,831,986.79
  5. Step 5: Solve for x
    x = 300,786,831,986.79/838,253.88
  6. Step 6: Final answer
    x = 358,825.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.