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Finding the Fourth Proportional to 478,809.24, 660,758.75 and 263,944.59

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Solution

The fourth proportional to 478,809.24, 660,758.75 and 263,944.59 is: 364,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,809.24 : 660,758.75 = 263,944.59 : x
  2. Step 2: Convert to fraction form
    478,809.24/660,758.75 = 263,944.59/x
  3. Step 3: Cross multiply
    478,809.24x = 660,758.75 × 263,944.59
  4. Step 4: Simplify right side
    478,809.24x = 174,403,697,357.66
  5. Step 5: Solve for x
    x = 174,403,697,357.66/478,809.24
  6. Step 6: Final answer
    x = 364,244.64

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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.