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Finding the Fourth Proportional to 696,754.36, 961,520.34 and 394,948.36

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Solution

The fourth proportional to 696,754.36, 961,520.34 and 394,948.36 is: 545,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,754.36 : 961,520.34 = 394,948.36 : x
  2. Step 2: Convert to fraction form
    696,754.36/961,520.34 = 394,948.36/x
  3. Step 3: Cross multiply
    696,754.36x = 961,520.34 × 394,948.36
  4. Step 4: Simplify right side
    696,754.36x = 379,750,881,389.64
  5. Step 5: Solve for x
    x = 379,750,881,389.64/696,754.36
  6. Step 6: Final answer
    x = 545,028.35

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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.