Home / 525,947.40-788,402.70-259,489.80

Finding the Fourth Proportional to 525,947.40, 788,402.70 and 259,489.80

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Solution

The fourth proportional to 525,947.40, 788,402.70 and 259,489.80 is: 388,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,947.40 : 788,402.70 = 259,489.80 : x
  2. Step 2: Convert to fraction form
    525,947.40/788,402.70 = 259,489.80/x
  3. Step 3: Cross multiply
    525,947.40x = 788,402.70 × 259,489.80
  4. Step 4: Simplify right side
    525,947.40x = 204,582,458,942.46
  5. Step 5: Solve for x
    x = 204,582,458,942.46/525,947.40
  6. Step 6: Final answer
    x = 388,978.93

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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.