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Finding the Fourth Proportional to 679,543.69, 937,772.19 and 373,651.36

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Solution

The fourth proportional to 679,543.69, 937,772.19 and 373,651.36 is: 515,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,543.69 : 937,772.19 = 373,651.36 : x
  2. Step 2: Convert to fraction form
    679,543.69/937,772.19 = 373,651.36/x
  3. Step 3: Cross multiply
    679,543.69x = 937,772.19 × 373,651.36
  4. Step 4: Simplify right side
    679,543.69x = 350,399,854,163.68
  5. Step 5: Solve for x
    x = 350,399,854,163.68/679,543.69
  6. Step 6: Final answer
    x = 515,639.92

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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.