Home / 318,530.21-439,571.76-175,290.25

Finding the Fourth Proportional to 318,530.21, 439,571.76 and 175,290.25

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Solution

The fourth proportional to 318,530.21, 439,571.76 and 175,290.25 is: 241,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,530.21 : 439,571.76 = 175,290.25 : x
  2. Step 2: Convert to fraction form
    318,530.21/439,571.76 = 175,290.25/x
  3. Step 3: Cross multiply
    318,530.21x = 439,571.76 × 175,290.25
  4. Step 4: Simplify right side
    318,530.21x = 77,052,643,884.31
  5. Step 5: Solve for x
    x = 77,052,643,884.31/318,530.21
  6. Step 6: Final answer
    x = 241,900.58

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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.