Home / 810,105.68-1,118,011.20-447,561.16

Finding the Fourth Proportional to 810,105.68, 1,118,011.20 and 447,561.16

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Solution

The fourth proportional to 810,105.68, 1,118,011.20 and 447,561.16 is: 617,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,105.68 : 1,118,011.20 = 447,561.16 : x
  2. Step 2: Convert to fraction form
    810,105.68/1,118,011.20 = 447,561.16/x
  3. Step 3: Cross multiply
    810,105.68x = 1,118,011.20 × 447,561.16
  4. Step 4: Simplify right side
    810,105.68x = 500,378,389,564.99
  5. Step 5: Solve for x
    x = 500,378,389,564.99/810,105.68
  6. Step 6: Final answer
    x = 617,670.51

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Double scale
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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.