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Finding the Fourth Proportional to 525,773.40, 788,775.30 and 259,661.40

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Solution

The fourth proportional to 525,773.40, 788,775.30 and 259,661.40 is: 389,548.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,773.40 : 788,775.30 = 259,661.40 : x
  2. Step 2: Convert to fraction form
    525,773.40/788,775.30 = 259,661.40/x
  3. Step 3: Cross multiply
    525,773.40x = 788,775.30 × 259,661.40
  4. Step 4: Simplify right side
    525,773.40x = 204,814,498,683.42
  5. Step 5: Solve for x
    x = 204,814,498,683.42/525,773.40
  6. Step 6: Final answer
    x = 389,548.99

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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.