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Finding the Fourth Proportional to 525,689.85, 725,451.26 and 283,972.35

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Solution

The fourth proportional to 525,689.85, 725,451.26 and 283,972.35 is: 391,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,689.85 : 725,451.26 = 283,972.35 : x
  2. Step 2: Convert to fraction form
    525,689.85/725,451.26 = 283,972.35/x
  3. Step 3: Cross multiply
    525,689.85x = 725,451.26 × 283,972.35
  4. Step 4: Simplify right side
    525,689.85x = 206,008,097,692.80
  5. Step 5: Solve for x
    x = 206,008,097,692.80/525,689.85
  6. Step 6: Final answer
    x = 391,881.44

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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.