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Finding the Fourth Proportional to 525,666.28, 725,419.76 and 283,948.83

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Solution

The fourth proportional to 525,666.28, 725,419.76 and 283,948.83 is: 391,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,666.28 : 725,419.76 = 283,948.83 : x
  2. Step 2: Convert to fraction form
    525,666.28/725,419.76 = 283,948.83/x
  3. Step 3: Cross multiply
    525,666.28x = 725,419.76 × 283,948.83
  4. Step 4: Simplify right side
    525,666.28x = 205,982,092,110.88
  5. Step 5: Solve for x
    x = 205,982,092,110.88/525,666.28
  6. Step 6: Final answer
    x = 391,849.54

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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.