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Finding the Fourth Proportional to 526,687.99, 726,632.78 and 345,500.51

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Solution

The fourth proportional to 526,687.99, 726,632.78 and 345,500.51 is: 476,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,687.99 : 726,632.78 = 345,500.51 : x
  2. Step 2: Convert to fraction form
    526,687.99/726,632.78 = 345,500.51/x
  3. Step 3: Cross multiply
    526,687.99x = 726,632.78 × 345,500.51
  4. Step 4: Simplify right side
    526,687.99x = 251,051,990,712.05
  5. Step 5: Solve for x
    x = 251,051,990,712.05/526,687.99
  6. Step 6: Final answer
    x = 476,661.70

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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.