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Finding the Fourth Proportional to 862,794.90, 1,190,709 and 475,609.82

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Solution

The fourth proportional to 862,794.90, 1,190,709 and 475,609.82 is: 656,370.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,794.90 : 1,190,709 = 475,609.82 : x
  2. Step 2: Convert to fraction form
    862,794.90/1,190,709 = 475,609.82/x
  3. Step 3: Cross multiply
    862,794.90x = 1,190,709 × 475,609.82
  4. Step 4: Simplify right side
    862,794.90x = 566,312,887,208.84
  5. Step 5: Solve for x
    x = 566,312,887,208.84/862,794.90
  6. Step 6: Final answer
    x = 656,370.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.