Home / 353,214.20-487,420.77-200,262.68

Finding the Fourth Proportional to 353,214.20, 487,420.77 and 200,262.68

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Solution

The fourth proportional to 353,214.20, 487,420.77 and 200,262.68 is: 276,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,214.20 : 487,420.77 = 200,262.68 : x
  2. Step 2: Convert to fraction form
    353,214.20/487,420.77 = 200,262.68/x
  3. Step 3: Cross multiply
    353,214.20x = 487,420.77 × 200,262.68
  4. Step 4: Simplify right side
    353,214.20x = 97,612,191,041.02
  5. Step 5: Solve for x
    x = 97,612,191,041.02/353,214.20
  6. Step 6: Final answer
    x = 276,354.09

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1.5x scale

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.