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Finding the Fourth Proportional to 515,797.20, 771,946.20 and 452,811.60

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Solution

The fourth proportional to 515,797.20, 771,946.20 and 452,811.60 is: 677,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,797.20 : 771,946.20 = 452,811.60 : x
  2. Step 2: Convert to fraction form
    515,797.20/771,946.20 = 452,811.60/x
  3. Step 3: Cross multiply
    515,797.20x = 771,946.20 × 452,811.60
  4. Step 4: Simplify right side
    515,797.20x = 349,546,193,935.92
  5. Step 5: Solve for x
    x = 349,546,193,935.92/515,797.20
  6. Step 6: Final answer
    x = 677,681.45

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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.