Home / 856,131.77-1,284,210.21-406,898.48

Finding the Fourth Proportional to 856,131.77, 1,284,210.21 and 406,898.48

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Solution

The fourth proportional to 856,131.77, 1,284,210.21 and 406,898.48 is: 610,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,131.77 : 1,284,210.21 = 406,898.48 : x
  2. Step 2: Convert to fraction form
    856,131.77/1,284,210.21 = 406,898.48/x
  3. Step 3: Cross multiply
    856,131.77x = 1,284,210.21 × 406,898.48
  4. Step 4: Simplify right side
    856,131.77x = 522,543,182,449.48
  5. Step 5: Solve for x
    x = 522,543,182,449.48/856,131.77
  6. Step 6: Final answer
    x = 610,353.69

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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.