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Finding the Fourth Proportional to 605,701.92, 835,521.84 and 378,953.76

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Solution

The fourth proportional to 605,701.92, 835,521.84 and 378,953.76 is: 522,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,701.92 : 835,521.84 = 378,953.76 : x
  2. Step 2: Convert to fraction form
    605,701.92/835,521.84 = 378,953.76/x
  3. Step 3: Cross multiply
    605,701.92x = 835,521.84 × 378,953.76
  4. Step 4: Simplify right side
    605,701.92x = 316,624,142,830.12
  5. Step 5: Solve for x
    x = 316,624,142,830.12/605,701.92
  6. Step 6: Final answer
    x = 522,739.21

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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.