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Finding the Fourth Proportional to 659,649.24, 910,317.71 and 357,843.24

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Solution

The fourth proportional to 659,649.24, 910,317.71 and 357,843.24 is: 493,824.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,649.24 : 910,317.71 = 357,843.24 : x
  2. Step 2: Convert to fraction form
    659,649.24/910,317.71 = 357,843.24/x
  3. Step 3: Cross multiply
    659,649.24x = 910,317.71 × 357,843.24
  4. Step 4: Simplify right side
    659,649.24x = 325,751,036,986.56
  5. Step 5: Solve for x
    x = 325,751,036,986.56/659,649.24
  6. Step 6: Final answer
    x = 493,824.62

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Double scale
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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.