Home / 873,144.50-1,309,717.05-392,811.20

Finding the Fourth Proportional to 873,144.50, 1,309,717.05 and 392,811.20

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Solution

The fourth proportional to 873,144.50, 1,309,717.05 and 392,811.20 is: 589,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,144.50 : 1,309,717.05 = 392,811.20 : x
  2. Step 2: Convert to fraction form
    873,144.50/1,309,717.05 = 392,811.20/x
  3. Step 3: Cross multiply
    873,144.50x = 1,309,717.05 × 392,811.20
  4. Step 4: Simplify right side
    873,144.50x = 514,471,526,070.96
  5. Step 5: Solve for x
    x = 514,471,526,070.96/873,144.50
  6. Step 6: Final answer
    x = 589,216.93

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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.