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Finding the Fourth Proportional to 692,162.92, 955,183.20 and 386,220.52

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Solution

The fourth proportional to 692,162.92, 955,183.20 and 386,220.52 is: 532,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,162.92 : 955,183.20 = 386,220.52 : x
  2. Step 2: Convert to fraction form
    692,162.92/955,183.20 = 386,220.52/x
  3. Step 3: Cross multiply
    692,162.92x = 955,183.20 × 386,220.52
  4. Step 4: Simplify right side
    692,162.92x = 368,911,352,199.26
  5. Step 5: Solve for x
    x = 368,911,352,199.26/692,162.92
  6. Step 6: Final answer
    x = 532,983.41

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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.