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Finding the Fourth Proportional to 525,983.61, 725,860.71 and 284,265.62

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Solution

The fourth proportional to 525,983.61, 725,860.71 and 284,265.62 is: 392,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,983.61 : 725,860.71 = 284,265.62 : x
  2. Step 2: Convert to fraction form
    525,983.61/725,860.71 = 284,265.62/x
  3. Step 3: Cross multiply
    525,983.61x = 725,860.71 × 284,265.62
  4. Step 4: Simplify right side
    525,983.61x = 206,337,241,132.49
  5. Step 5: Solve for x
    x = 206,337,241,132.49/525,983.61
  6. Step 6: Final answer
    x = 392,288.35

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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.