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Finding the Fourth Proportional to 512,794.10, 769,883.70 and 299,780.30

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Solution

The fourth proportional to 512,794.10, 769,883.70 and 299,780.30 is: 450,075.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,794.10 : 769,883.70 = 299,780.30 : x
  2. Step 2: Convert to fraction form
    512,794.10/769,883.70 = 299,780.30/x
  3. Step 3: Cross multiply
    512,794.10x = 769,883.70 × 299,780.30
  4. Step 4: Simplify right side
    512,794.10x = 230,795,966,551.11
  5. Step 5: Solve for x
    x = 230,795,966,551.11/512,794.10
  6. Step 6: Final answer
    x = 450,075.32

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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.