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Finding the Fourth Proportional to 525,640.30, 725,398.56 and 296,199.70

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Solution

The fourth proportional to 525,640.30, 725,398.56 and 296,199.70 is: 408,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,640.30 : 725,398.56 = 296,199.70 : x
  2. Step 2: Convert to fraction form
    525,640.30/725,398.56 = 296,199.70/x
  3. Step 3: Cross multiply
    525,640.30x = 725,398.56 × 296,199.70
  4. Step 4: Simplify right side
    525,640.30x = 214,862,835,852.43
  5. Step 5: Solve for x
    x = 214,862,835,852.43/525,640.30
  6. Step 6: Final answer
    x = 408,764.01

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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.