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Finding the Fourth Proportional to 782,969.64, 1,173,614.86 and 512,995.80

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Solution

The fourth proportional to 782,969.64, 1,173,614.86 and 512,995.80 is: 768,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,969.64 : 1,173,614.86 = 512,995.80 : x
  2. Step 2: Convert to fraction form
    782,969.64/1,173,614.86 = 512,995.80/x
  3. Step 3: Cross multiply
    782,969.64x = 1,173,614.86 × 512,995.80
  4. Step 4: Simplify right side
    782,969.64x = 602,059,493,997.59
  5. Step 5: Solve for x
    x = 602,059,493,997.59/782,969.64
  6. Step 6: Final answer
    x = 768,943.60

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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.