Home / 457,104.04-686,098.32-220,613.20

Finding the Fourth Proportional to 457,104.04, 686,098.32 and 220,613.20

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Solution

The fourth proportional to 457,104.04, 686,098.32 and 220,613.20 is: 331,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,104.04 : 686,098.32 = 220,613.20 : x
  2. Step 2: Convert to fraction form
    457,104.04/686,098.32 = 220,613.20/x
  3. Step 3: Cross multiply
    457,104.04x = 686,098.32 × 220,613.20
  4. Step 4: Simplify right side
    457,104.04x = 151,362,345,889.82
  5. Step 5: Solve for x
    x = 151,362,345,889.82/457,104.04
  6. Step 6: Final answer
    x = 331,133.25

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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.