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Finding the Fourth Proportional to 629,636.88, 868,873.60 and 343,150.82

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Solution

The fourth proportional to 629,636.88, 868,873.60 and 343,150.82 is: 473,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,636.88 : 868,873.60 = 343,150.82 : x
  2. Step 2: Convert to fraction form
    629,636.88/868,873.60 = 343,150.82/x
  3. Step 3: Cross multiply
    629,636.88x = 868,873.60 × 343,150.82
  4. Step 4: Simplify right side
    629,636.88x = 298,154,688,316.35
  5. Step 5: Solve for x
    x = 298,154,688,316.35/629,636.88
  6. Step 6: Final answer
    x = 473,534.35

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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.