Home / 465,983.72-642,687.64-302,461.44

Finding the Fourth Proportional to 465,983.72, 642,687.64 and 302,461.44

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Solution

The fourth proportional to 465,983.72, 642,687.64 and 302,461.44 is: 417,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,983.72 : 642,687.64 = 302,461.44 : x
  2. Step 2: Convert to fraction form
    465,983.72/642,687.64 = 302,461.44/x
  3. Step 3: Cross multiply
    465,983.72x = 642,687.64 × 302,461.44
  4. Step 4: Simplify right side
    465,983.72x = 194,388,229,064.60
  5. Step 5: Solve for x
    x = 194,388,229,064.60/465,983.72
  6. Step 6: Final answer
    x = 417,156.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.