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Finding the Fourth Proportional to 659,649.11, 910,317.53 and 357,843.11

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Solution

The fourth proportional to 659,649.11, 910,317.53 and 357,843.11 is: 493,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,649.11 : 910,317.53 = 357,843.11 : x
  2. Step 2: Convert to fraction form
    659,649.11/910,317.53 = 357,843.11/x
  3. Step 3: Cross multiply
    659,649.11x = 910,317.53 × 357,843.11
  4. Step 4: Simplify right side
    659,649.11x = 325,750,854,233.50
  5. Step 5: Solve for x
    x = 325,750,854,233.50/659,649.11
  6. Step 6: Final answer
    x = 493,824.44

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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.