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Finding the Fourth Proportional to 419,625.60, 579,085.92 and 249,866.88

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Solution

The fourth proportional to 419,625.60, 579,085.92 and 249,866.88 is: 344,817.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,625.60 : 579,085.92 = 249,866.88 : x
  2. Step 2: Convert to fraction form
    419,625.60/579,085.92 = 249,866.88/x
  3. Step 3: Cross multiply
    419,625.60x = 579,085.92 × 249,866.88
  4. Step 4: Simplify right side
    419,625.60x = 144,694,392,082.33
  5. Step 5: Solve for x
    x = 144,694,392,082.33/419,625.60
  6. Step 6: Final answer
    x = 344,817.84

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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.