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Finding the Fourth Proportional to 519,084.45, 777,150.45 and 400,002.30

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Solution

The fourth proportional to 519,084.45, 777,150.45 and 400,002.30 is: 598,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,084.45 : 777,150.45 = 400,002.30 : x
  2. Step 2: Convert to fraction form
    519,084.45/777,150.45 = 400,002.30/x
  3. Step 3: Cross multiply
    519,084.45x = 777,150.45 × 400,002.30
  4. Step 4: Simplify right side
    519,084.45x = 310,861,967,446.04
  5. Step 5: Solve for x
    x = 310,861,967,446.04/519,084.45
  6. Step 6: Final answer
    x = 598,865.88

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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.