Home / 909,399.51-1,364,103.84-235,433.55

Finding the Fourth Proportional to 909,399.51, 1,364,103.84 and 235,433.55

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Solution

The fourth proportional to 909,399.51, 1,364,103.84 and 235,433.55 is: 353,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,399.51 : 1,364,103.84 = 235,433.55 : x
  2. Step 2: Convert to fraction form
    909,399.51/1,364,103.84 = 235,433.55/x
  3. Step 3: Cross multiply
    909,399.51x = 1,364,103.84 × 235,433.55
  4. Step 4: Simplify right side
    909,399.51x = 321,155,809,619.83
  5. Step 5: Solve for x
    x = 321,155,809,619.83/909,399.51
  6. Step 6: Final answer
    x = 353,151.51

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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.