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Finding the Fourth Proportional to 366,963.40, 512,699 and 366,963.40

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Solution

The fourth proportional to 366,963.40, 512,699 and 366,963.40 is: 512,699

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,963.40 : 512,699 = 366,963.40 : x
  2. Step 2: Convert to fraction form
    366,963.40/512,699 = 366,963.40/x
  3. Step 3: Cross multiply
    366,963.40x = 512,699 × 366,963.40
  4. Step 4: Simplify right side
    366,963.40x = 188,141,768,216.60
  5. Step 5: Solve for x
    x = 188,141,768,216.60/366,963.40
  6. Step 6: Final answer
    x = 512,699

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.