Home / 428,684.47-591,530.19-235,041.22

Finding the Fourth Proportional to 428,684.47, 591,530.19 and 235,041.22

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Solution

The fourth proportional to 428,684.47, 591,530.19 and 235,041.22 is: 324,327.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,684.47 : 591,530.19 = 235,041.22 : x
  2. Step 2: Convert to fraction form
    428,684.47/591,530.19 = 235,041.22/x
  3. Step 3: Cross multiply
    428,684.47x = 591,530.19 × 235,041.22
  4. Step 4: Simplify right side
    428,684.47x = 139,033,976,045.61
  5. Step 5: Solve for x
    x = 139,033,976,045.61/428,684.47
  6. Step 6: Final answer
    x = 324,327.07

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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.