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Finding the Fourth Proportional to 407,594.20, 611,148.30 and 249,935.80

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Solution

The fourth proportional to 407,594.20, 611,148.30 and 249,935.80 is: 374,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,594.20 : 611,148.30 = 249,935.80 : x
  2. Step 2: Convert to fraction form
    407,594.20/611,148.30 = 249,935.80/x
  3. Step 3: Cross multiply
    407,594.20x = 611,148.30 × 249,935.80
  4. Step 4: Simplify right side
    407,594.20x = 152,747,839,279.14
  5. Step 5: Solve for x
    x = 152,747,839,279.14/407,594.20
  6. Step 6: Final answer
    x = 374,754.69

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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.