Home / 856,557.60-1,284,253.20-323,998.80

Finding the Fourth Proportional to 856,557.60, 1,284,253.20 and 323,998.80

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Solution

The fourth proportional to 856,557.60, 1,284,253.20 and 323,998.80 is: 485,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,557.60 : 1,284,253.20 = 323,998.80 : x
  2. Step 2: Convert to fraction form
    856,557.60/1,284,253.20 = 323,998.80/x
  3. Step 3: Cross multiply
    856,557.60x = 1,284,253.20 × 323,998.80
  4. Step 4: Simplify right side
    856,557.60x = 416,096,495,696.16
  5. Step 5: Solve for x
    x = 416,096,495,696.16/856,557.60
  6. Step 6: Final answer
    x = 485,777.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.