Home / 457,986.30-686,979.45-192,047.10

Finding the Fourth Proportional to 457,986.30, 686,979.45 and 192,047.10

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Solution

The fourth proportional to 457,986.30, 686,979.45 and 192,047.10 is: 288,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,986.30 : 686,979.45 = 192,047.10 : x
  2. Step 2: Convert to fraction form
    457,986.30/686,979.45 = 192,047.10/x
  3. Step 3: Cross multiply
    457,986.30x = 686,979.45 × 192,047.10
  4. Step 4: Simplify right side
    457,986.30x = 131,932,411,132.10
  5. Step 5: Solve for x
    x = 131,932,411,132.10/457,986.30
  6. Step 6: Final answer
    x = 288,070.65

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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.