Home / 525,944.40-788,398.20-259,486.80

Finding the Fourth Proportional to 525,944.40, 788,398.20 and 259,486.80

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Solution

The fourth proportional to 525,944.40, 788,398.20 and 259,486.80 is: 388,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,944.40 : 788,398.20 = 259,486.80 : x
  2. Step 2: Convert to fraction form
    525,944.40/788,398.20 = 259,486.80/x
  3. Step 3: Cross multiply
    525,944.40x = 788,398.20 × 259,486.80
  4. Step 4: Simplify right side
    525,944.40x = 204,578,926,043.76
  5. Step 5: Solve for x
    x = 204,578,926,043.76/525,944.40
  6. Step 6: Final answer
    x = 388,974.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.