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Finding the Fourth Proportional to 525,529.29, 725,230.40 and 283,811.88

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Solution

The fourth proportional to 525,529.29, 725,230.40 and 283,811.88 is: 391,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,529.29 : 725,230.40 = 283,811.88 : x
  2. Step 2: Convert to fraction form
    525,529.29/725,230.40 = 283,811.88/x
  3. Step 3: Cross multiply
    525,529.29x = 725,230.40 × 283,811.88
  4. Step 4: Simplify right side
    525,529.29x = 205,829,001,838.09
  5. Step 5: Solve for x
    x = 205,829,001,838.09/525,529.29
  6. Step 6: Final answer
    x = 391,660.38

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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.