Home / 440,639.25-608,085.81-239,435.25

Finding the Fourth Proportional to 440,639.25, 608,085.81 and 239,435.25

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Solution

The fourth proportional to 440,639.25, 608,085.81 and 239,435.25 is: 330,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,639.25 : 608,085.81 = 239,435.25 : x
  2. Step 2: Convert to fraction form
    440,639.25/608,085.81 = 239,435.25/x
  3. Step 3: Cross multiply
    440,639.25x = 608,085.81 × 239,435.25
  4. Step 4: Simplify right side
    440,639.25x = 145,597,177,938.80
  5. Step 5: Solve for x
    x = 145,597,177,938.80/440,639.25
  6. Step 6: Final answer
    x = 330,422.63

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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.