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Finding the Fourth Proportional to 249,313.76, 343,858.92 and 220,664.24

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Solution

The fourth proportional to 249,313.76, 343,858.92 and 220,664.24 is: 304,344.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,313.76 : 343,858.92 = 220,664.24 : x
  2. Step 2: Convert to fraction form
    249,313.76/343,858.92 = 220,664.24/x
  3. Step 3: Cross multiply
    249,313.76x = 343,858.92 × 220,664.24
  4. Step 4: Simplify right side
    249,313.76x = 75,877,367,249.02
  5. Step 5: Solve for x
    x = 75,877,367,249.02/249,313.76
  6. Step 6: Final answer
    x = 304,344.88

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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.