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Finding the Fourth Proportional to 525,505.57, 725,197.68 and 283,788.13

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Solution

The fourth proportional to 525,505.57, 725,197.68 and 283,788.13 is: 391,627.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,505.57 : 725,197.68 = 283,788.13 : x
  2. Step 2: Convert to fraction form
    525,505.57/725,197.68 = 283,788.13/x
  3. Step 3: Cross multiply
    525,505.57x = 725,197.68 × 283,788.13
  4. Step 4: Simplify right side
    525,505.57x = 205,802,489,782.70
  5. Step 5: Solve for x
    x = 205,802,489,782.70/525,505.57
  6. Step 6: Final answer
    x = 391,627.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.