Home / 428,837.95-591,826.36-245,103.56

Finding the Fourth Proportional to 428,837.95, 591,826.36 and 245,103.56

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Solution

The fourth proportional to 428,837.95, 591,826.36 and 245,103.56 is: 338,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,837.95 : 591,826.36 = 245,103.56 : x
  2. Step 2: Convert to fraction form
    428,837.95/591,826.36 = 245,103.56/x
  3. Step 3: Cross multiply
    428,837.95x = 591,826.36 × 245,103.56
  4. Step 4: Simplify right side
    428,837.95x = 145,058,747,737.84
  5. Step 5: Solve for x
    x = 145,058,747,737.84/428,837.95
  6. Step 6: Final answer
    x = 338,260.05

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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.