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Finding the Fourth Proportional to 640,954.52, 884,635.57 and 411,798.27

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Solution

The fourth proportional to 640,954.52, 884,635.57 and 411,798.27 is: 568,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,954.52 : 884,635.57 = 411,798.27 : x
  2. Step 2: Convert to fraction form
    640,954.52/884,635.57 = 411,798.27/x
  3. Step 3: Cross multiply
    640,954.52x = 884,635.57 × 411,798.27
  4. Step 4: Simplify right side
    640,954.52x = 364,291,397,492.38
  5. Step 5: Solve for x
    x = 364,291,397,492.38/640,954.52
  6. Step 6: Final answer
    x = 568,357.64

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Double scale
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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.