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Finding the Fourth Proportional to 325,771.92, 486,429.84 and 291,818.88

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Solution

The fourth proportional to 325,771.92, 486,429.84 and 291,818.88 is: 435,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,771.92 : 486,429.84 = 291,818.88 : x
  2. Step 2: Convert to fraction form
    325,771.92/486,429.84 = 291,818.88/x
  3. Step 3: Cross multiply
    325,771.92x = 486,429.84 × 291,818.88
  4. Step 4: Simplify right side
    325,771.92x = 141,949,411,107.38
  5. Step 5: Solve for x
    x = 141,949,411,107.38/325,771.92
  6. Step 6: Final answer
    x = 435,732.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.