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Finding the Fourth Proportional to 505,949.60, 758,002.80 and 411,946.40

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Solution

The fourth proportional to 505,949.60, 758,002.80 and 411,946.40 is: 617,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,949.60 : 758,002.80 = 411,946.40 : x
  2. Step 2: Convert to fraction form
    505,949.60/758,002.80 = 411,946.40/x
  3. Step 3: Cross multiply
    505,949.60x = 758,002.80 × 411,946.40
  4. Step 4: Simplify right side
    505,949.60x = 312,256,524,649.92
  5. Step 5: Solve for x
    x = 312,256,524,649.92/505,949.60
  6. Step 6: Final answer
    x = 617,169.23

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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.