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Finding the Fourth Proportional to 478,694.32, 660,601.29 and 263,834.38

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Solution

The fourth proportional to 478,694.32, 660,601.29 and 263,834.38 is: 364,093.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,694.32 : 660,601.29 = 263,834.38 : x
  2. Step 2: Convert to fraction form
    478,694.32/660,601.29 = 263,834.38/x
  3. Step 3: Cross multiply
    478,694.32x = 660,601.29 × 263,834.38
  4. Step 4: Simplify right side
    478,694.32x = 174,289,334,055.40
  5. Step 5: Solve for x
    x = 174,289,334,055.40/478,694.32
  6. Step 6: Final answer
    x = 364,093.17

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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.