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Finding the Fourth Proportional to 526,243.84, 788,020.75 and 289,326.13

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Solution

The fourth proportional to 526,243.84, 788,020.75 and 289,326.13 is: 433,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,243.84 : 788,020.75 = 289,326.13 : x
  2. Step 2: Convert to fraction form
    526,243.84/788,020.75 = 289,326.13/x
  3. Step 3: Cross multiply
    526,243.84x = 788,020.75 × 289,326.13
  4. Step 4: Simplify right side
    526,243.84x = 227,994,992,348.80
  5. Step 5: Solve for x
    x = 227,994,992,348.80/526,243.84
  6. Step 6: Final answer
    x = 433,249.71

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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.