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Finding the Fourth Proportional to 249,378.60, 374,067.90 and 216,901.65

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Solution

The fourth proportional to 249,378.60, 374,067.90 and 216,901.65 is: 325,352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,378.60 : 374,067.90 = 216,901.65 : x
  2. Step 2: Convert to fraction form
    249,378.60/374,067.90 = 216,901.65/x
  3. Step 3: Cross multiply
    249,378.60x = 374,067.90 × 216,901.65
  4. Step 4: Simplify right side
    249,378.60x = 81,135,944,722.04
  5. Step 5: Solve for x
    x = 81,135,944,722.04/249,378.60
  6. Step 6: Final answer
    x = 325,352.48

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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.