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Finding the Fourth Proportional to 307,966.80, 460,913.40 and 283,083.60

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Solution

The fourth proportional to 307,966.80, 460,913.40 and 283,083.60 is: 423,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,966.80 : 460,913.40 = 283,083.60 : x
  2. Step 2: Convert to fraction form
    307,966.80/460,913.40 = 283,083.60/x
  3. Step 3: Cross multiply
    307,966.80x = 460,913.40 × 283,083.60
  4. Step 4: Simplify right side
    307,966.80x = 130,477,024,560.24
  5. Step 5: Solve for x
    x = 130,477,024,560.24/307,966.80
  6. Step 6: Final answer
    x = 423,672.37

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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.