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Finding the Fourth Proportional to 525,775.40, 788,778.30 and 259,663.40

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Solution

The fourth proportional to 525,775.40, 788,778.30 and 259,663.40 is: 389,551.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,775.40 : 788,778.30 = 259,663.40 : x
  2. Step 2: Convert to fraction form
    525,775.40/788,778.30 = 259,663.40/x
  3. Step 3: Cross multiply
    525,775.40x = 788,778.30 × 259,663.40
  4. Step 4: Simplify right side
    525,775.40x = 204,816,855,224.22
  5. Step 5: Solve for x
    x = 204,816,855,224.22/525,775.40
  6. Step 6: Final answer
    x = 389,551.99

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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.