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Finding the Fourth Proportional to 628,080.82, 937,866.90 and 498,543.80

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Solution

The fourth proportional to 628,080.82, 937,866.90 and 498,543.80 is: 744,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,080.82 : 937,866.90 = 498,543.80 : x
  2. Step 2: Convert to fraction form
    628,080.82/937,866.90 = 498,543.80/x
  3. Step 3: Cross multiply
    628,080.82x = 937,866.90 × 498,543.80
  4. Step 4: Simplify right side
    628,080.82x = 467,567,725,727.50
  5. Step 5: Solve for x
    x = 467,567,725,727.50/628,080.82
  6. Step 6: Final answer
    x = 744,438.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.