Home / 621,124.02-857,181.96-379,367.46

Finding the Fourth Proportional to 621,124.02, 857,181.96 and 379,367.46

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Solution

The fourth proportional to 621,124.02, 857,181.96 and 379,367.46 is: 523,545.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,124.02 : 857,181.96 = 379,367.46 : x
  2. Step 2: Convert to fraction form
    621,124.02/857,181.96 = 379,367.46/x
  3. Step 3: Cross multiply
    621,124.02x = 857,181.96 × 379,367.46
  4. Step 4: Simplify right side
    621,124.02x = 325,186,942,923.02
  5. Step 5: Solve for x
    x = 325,186,942,923.02/621,124.02
  6. Step 6: Final answer
    x = 523,545.91

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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.