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Finding the Fourth Proportional to 696,758.76, 961,541.55 and 394,952.76

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Solution

The fourth proportional to 696,758.76, 961,541.55 and 394,952.76 is: 545,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,758.76 : 961,541.55 = 394,952.76 : x
  2. Step 2: Convert to fraction form
    696,758.76/961,541.55 = 394,952.76/x
  3. Step 3: Cross multiply
    696,758.76x = 961,541.55 × 394,952.76
  4. Step 4: Simplify right side
    696,758.76x = 379,763,489,027.18
  5. Step 5: Solve for x
    x = 379,763,489,027.18/696,758.76
  6. Step 6: Final answer
    x = 545,043.01

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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.