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Finding the Fourth Proportional to 693,139.05, 955,910.16 and 577,236.24

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Solution

The fourth proportional to 693,139.05, 955,910.16 and 577,236.24 is: 796,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,139.05 : 955,910.16 = 577,236.24 : x
  2. Step 2: Convert to fraction form
    693,139.05/955,910.16 = 577,236.24/x
  3. Step 3: Cross multiply
    693,139.05x = 955,910.16 × 577,236.24
  4. Step 4: Simplify right side
    693,139.05x = 551,785,986,536.20
  5. Step 5: Solve for x
    x = 551,785,986,536.20/693,139.05
  6. Step 6: Final answer
    x = 796,068.24

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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.