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Finding the Fourth Proportional to 763,761.88, 1,053,852.42 and 441,353.80

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Solution

The fourth proportional to 763,761.88, 1,053,852.42 and 441,353.80 is: 608,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,761.88 : 1,053,852.42 = 441,353.80 : x
  2. Step 2: Convert to fraction form
    763,761.88/1,053,852.42 = 441,353.80/x
  3. Step 3: Cross multiply
    763,761.88x = 1,053,852.42 × 441,353.80
  4. Step 4: Simplify right side
    763,761.88x = 465,121,770,206.20
  5. Step 5: Solve for x
    x = 465,121,770,206.20/763,761.88
  6. Step 6: Final answer
    x = 608,987.94

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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.