Home / 458,176.14-686,988.09-205,410.87

Finding the Fourth Proportional to 458,176.14, 686,988.09 and 205,410.87

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Solution

The fourth proportional to 458,176.14, 686,988.09 and 205,410.87 is: 307,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,176.14 : 686,988.09 = 205,410.87 : x
  2. Step 2: Convert to fraction form
    458,176.14/686,988.09 = 205,410.87/x
  3. Step 3: Cross multiply
    458,176.14x = 686,988.09 × 205,410.87
  4. Step 4: Simplify right side
    458,176.14x = 141,114,821,246.54
  5. Step 5: Solve for x
    x = 141,114,821,246.54/458,176.14
  6. Step 6: Final answer
    x = 307,992.51

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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.