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Finding the Fourth Proportional to 827,668.80, 1,142,097.84 and 465,035.04

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Solution

The fourth proportional to 827,668.80, 1,142,097.84 and 465,035.04 is: 641,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,668.80 : 1,142,097.84 = 465,035.04 : x
  2. Step 2: Convert to fraction form
    827,668.80/1,142,097.84 = 465,035.04/x
  3. Step 3: Cross multiply
    827,668.80x = 1,142,097.84 × 465,035.04
  4. Step 4: Simplify right side
    827,668.80x = 531,115,514,708.31
  5. Step 5: Solve for x
    x = 531,115,514,708.31/827,668.80
  6. Step 6: Final answer
    x = 641,700.54

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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.