Home / 411,981.20-619,008.60-262,293.20

Finding the Fourth Proportional to 411,981.20, 619,008.60 and 262,293.20

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Solution

The fourth proportional to 411,981.20, 619,008.60 and 262,293.20 is: 394,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,981.20 : 619,008.60 = 262,293.20 : x
  2. Step 2: Convert to fraction form
    411,981.20/619,008.60 = 262,293.20/x
  3. Step 3: Cross multiply
    411,981.20x = 619,008.60 × 262,293.20
  4. Step 4: Simplify right side
    411,981.20x = 162,361,746,521.52
  5. Step 5: Solve for x
    x = 162,361,746,521.52/411,981.20
  6. Step 6: Final answer
    x = 394,099.89

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1.5x scale

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.