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Finding the Fourth Proportional to 296,429.40, 443,331.90 and 249,190.20

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Solution

The fourth proportional to 296,429.40, 443,331.90 and 249,190.20 is: 372,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,429.40 : 443,331.90 = 249,190.20 : x
  2. Step 2: Convert to fraction form
    296,429.40/443,331.90 = 249,190.20/x
  3. Step 3: Cross multiply
    296,429.40x = 443,331.90 × 249,190.20
  4. Step 4: Simplify right side
    296,429.40x = 110,473,964,827.38
  5. Step 5: Solve for x
    x = 110,473,964,827.38/296,429.40
  6. Step 6: Final answer
    x = 372,682.21

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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.