Home / 353,860.11-488,340.77-200,912.53

Finding the Fourth Proportional to 353,860.11, 488,340.77 and 200,912.53

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Solution

The fourth proportional to 353,860.11, 488,340.77 and 200,912.53 is: 277,267.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,860.11 : 488,340.77 = 200,912.53 : x
  2. Step 2: Convert to fraction form
    353,860.11/488,340.77 = 200,912.53/x
  3. Step 3: Cross multiply
    353,860.11x = 488,340.77 × 200,912.53
  4. Step 4: Simplify right side
    353,860.11x = 98,113,778,130.86
  5. Step 5: Solve for x
    x = 98,113,778,130.86/353,860.11
  6. Step 6: Final answer
    x = 277,267.14

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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.