Home / 646,517.61-892,160.25-370,861.55

Finding the Fourth Proportional to 646,517.61, 892,160.25 and 370,861.55

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Solution

The fourth proportional to 646,517.61, 892,160.25 and 370,861.55 is: 511,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,517.61 : 892,160.25 = 370,861.55 : x
  2. Step 2: Convert to fraction form
    646,517.61/892,160.25 = 370,861.55/x
  3. Step 3: Cross multiply
    646,517.61x = 892,160.25 × 370,861.55
  4. Step 4: Simplify right side
    646,517.61x = 330,867,934,128.53
  5. Step 5: Solve for x
    x = 330,867,934,128.53/646,517.61
  6. Step 6: Final answer
    x = 511,769.41

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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.