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Finding the Fourth Proportional to 404,167.80, 606,251.70 and 314,938.20

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Solution

The fourth proportional to 404,167.80, 606,251.70 and 314,938.20 is: 472,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,167.80 : 606,251.70 = 314,938.20 : x
  2. Step 2: Convert to fraction form
    404,167.80/606,251.70 = 314,938.20/x
  3. Step 3: Cross multiply
    404,167.80x = 606,251.70 × 314,938.20
  4. Step 4: Simplify right side
    404,167.80x = 190,931,819,144.94
  5. Step 5: Solve for x
    x = 190,931,819,144.94/404,167.80
  6. Step 6: Final answer
    x = 472,407.30

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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.