Home / 861,025.06-1,290,700.23-411,629.50

Finding the Fourth Proportional to 861,025.06, 1,290,700.23 and 411,629.50

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Solution

The fourth proportional to 861,025.06, 1,290,700.23 and 411,629.50 is: 617,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,025.06 : 1,290,700.23 = 411,629.50 : x
  2. Step 2: Convert to fraction form
    861,025.06/1,290,700.23 = 411,629.50/x
  3. Step 3: Cross multiply
    861,025.06x = 1,290,700.23 × 411,629.50
  4. Step 4: Simplify right side
    861,025.06x = 531,290,290,324.79
  5. Step 5: Solve for x
    x = 531,290,290,324.79/861,025.06
  6. Step 6: Final answer
    x = 617,043.93

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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.