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Finding the Fourth Proportional to 519,404.40, 779,252.40 and 253,173.60

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Solution

The fourth proportional to 519,404.40, 779,252.40 and 253,173.60 is: 379,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,404.40 : 779,252.40 = 253,173.60 : x
  2. Step 2: Convert to fraction form
    519,404.40/779,252.40 = 253,173.60/x
  3. Step 3: Cross multiply
    519,404.40x = 779,252.40 × 253,173.60
  4. Step 4: Simplify right side
    519,404.40x = 197,286,135,416.64
  5. Step 5: Solve for x
    x = 197,286,135,416.64/519,404.40
  6. Step 6: Final answer
    x = 379,831.47

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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.