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Finding the Fourth Proportional to 934,309.60, 1,401,464.40 and 343,256.80

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Solution

The fourth proportional to 934,309.60, 1,401,464.40 and 343,256.80 is: 514,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,309.60 : 1,401,464.40 = 343,256.80 : x
  2. Step 2: Convert to fraction form
    934,309.60/1,401,464.40 = 343,256.80/x
  3. Step 3: Cross multiply
    934,309.60x = 1,401,464.40 × 343,256.80
  4. Step 4: Simplify right side
    934,309.60x = 481,062,185,257.92
  5. Step 5: Solve for x
    x = 481,062,185,257.92/934,309.60
  6. Step 6: Final answer
    x = 514,885.20

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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.