Home / 438,905.81-605,739.33-247,931.51

Finding the Fourth Proportional to 438,905.81, 605,739.33 and 247,931.51

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Solution

The fourth proportional to 438,905.81, 605,739.33 and 247,931.51 is: 342,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,905.81 : 605,739.33 = 247,931.51 : x
  2. Step 2: Convert to fraction form
    438,905.81/605,739.33 = 247,931.51/x
  3. Step 3: Cross multiply
    438,905.81x = 605,739.33 × 247,931.51
  4. Step 4: Simplify right side
    438,905.81x = 150,181,863,724.59
  5. Step 5: Solve for x
    x = 150,181,863,724.59/438,905.81
  6. Step 6: Final answer
    x = 342,173.33

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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.