Home / 852,817.03-1,176,990.71-485,383.51

Finding the Fourth Proportional to 852,817.03, 1,176,990.71 and 485,383.51

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Solution

The fourth proportional to 852,817.03, 1,176,990.71 and 485,383.51 is: 669,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,817.03 : 1,176,990.71 = 485,383.51 : x
  2. Step 2: Convert to fraction form
    852,817.03/1,176,990.71 = 485,383.51/x
  3. Step 3: Cross multiply
    852,817.03x = 1,176,990.71 × 485,383.51
  4. Step 4: Simplify right side
    852,817.03x = 571,291,882,057.19
  5. Step 5: Solve for x
    x = 571,291,882,057.19/852,817.03
  6. Step 6: Final answer
    x = 669,887.99

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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.