Home / 525,665.23-725,418.30-283,947.80

Finding the Fourth Proportional to 525,665.23, 725,418.30 and 283,947.80

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Solution

The fourth proportional to 525,665.23, 725,418.30 and 283,947.80 is: 391,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,665.23 : 725,418.30 = 283,947.80 : x
  2. Step 2: Convert to fraction form
    525,665.23/725,418.30 = 283,947.80/x
  3. Step 3: Cross multiply
    525,665.23x = 725,418.30 × 283,947.80
  4. Step 4: Simplify right side
    525,665.23x = 205,980,930,364.74
  5. Step 5: Solve for x
    x = 205,980,930,364.74/525,665.23
  6. Step 6: Final answer
    x = 391,848.12

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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.