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Finding the Fourth Proportional to 525,774.90, 725,569.70 and 284,057.37

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Solution

The fourth proportional to 525,774.90, 725,569.70 and 284,057.37 is: 391,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,774.90 : 725,569.70 = 284,057.37 : x
  2. Step 2: Convert to fraction form
    525,774.90/725,569.70 = 284,057.37/x
  3. Step 3: Cross multiply
    525,774.90x = 725,569.70 × 284,057.37
  4. Step 4: Simplify right side
    525,774.90x = 206,103,420,733.69
  5. Step 5: Solve for x
    x = 206,103,420,733.69/525,774.90
  6. Step 6: Final answer
    x = 391,999.35

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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.