Home / 389,268.32-537,189.39-219,501.23

Finding the Fourth Proportional to 389,268.32, 537,189.39 and 219,501.23

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Solution

The fourth proportional to 389,268.32, 537,189.39 and 219,501.23 is: 302,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,268.32 : 537,189.39 = 219,501.23 : x
  2. Step 2: Convert to fraction form
    389,268.32/537,189.39 = 219,501.23/x
  3. Step 3: Cross multiply
    389,268.32x = 537,189.39 × 219,501.23
  4. Step 4: Simplify right side
    389,268.32x = 117,913,729,162.00
  5. Step 5: Solve for x
    x = 117,913,729,162.00/389,268.32
  6. Step 6: Final answer
    x = 302,911.19

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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.