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Finding the Fourth Proportional to 525,513.89, 725,209.17 and 283,796.45

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Solution

The fourth proportional to 525,513.89, 725,209.17 and 283,796.45 is: 391,639.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,513.89 : 725,209.17 = 283,796.45 : x
  2. Step 2: Convert to fraction form
    525,513.89/725,209.17 = 283,796.45/x
  3. Step 3: Cross multiply
    525,513.89x = 725,209.17 × 283,796.45
  4. Step 4: Simplify right side
    525,513.89x = 205,811,782,908.42
  5. Step 5: Solve for x
    x = 205,811,782,908.42/525,513.89
  6. Step 6: Final answer
    x = 391,639.09

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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.