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Finding the Fourth Proportional to 632,578.44, 872,979.21 and 346,098.66

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Solution

The fourth proportional to 632,578.44, 872,979.21 and 346,098.66 is: 477,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,578.44 : 872,979.21 = 346,098.66 : x
  2. Step 2: Convert to fraction form
    632,578.44/872,979.21 = 346,098.66/x
  3. Step 3: Cross multiply
    632,578.44x = 872,979.21 × 346,098.66
  4. Step 4: Simplify right side
    632,578.44x = 302,136,934,788.86
  5. Step 5: Solve for x
    x = 302,136,934,788.86/632,578.44
  6. Step 6: Final answer
    x = 477,627.62

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Double scale
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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.