Home / 525,945.40-788,399.70-259,487.80

Finding the Fourth Proportional to 525,945.40, 788,399.70 and 259,487.80

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Solution

The fourth proportional to 525,945.40, 788,399.70 and 259,487.80 is: 388,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,945.40 : 788,399.70 = 259,487.80 : x
  2. Step 2: Convert to fraction form
    525,945.40/788,399.70 = 259,487.80/x
  3. Step 3: Cross multiply
    525,945.40x = 788,399.70 × 259,487.80
  4. Step 4: Simplify right side
    525,945.40x = 204,580,103,673.66
  5. Step 5: Solve for x
    x = 204,580,103,673.66/525,945.40
  6. Step 6: Final answer
    x = 388,975.93

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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.