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Finding the Fourth Proportional to 543,953.93, 815,930.74 and 169,976.93

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Solution

The fourth proportional to 543,953.93, 815,930.74 and 169,976.93 is: 254,965.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,953.93 : 815,930.74 = 169,976.93 : x
  2. Step 2: Convert to fraction form
    543,953.93/815,930.74 = 169,976.93/x
  3. Step 3: Cross multiply
    543,953.93x = 815,930.74 × 169,976.93
  4. Step 4: Simplify right side
    543,953.93x = 138,689,402,277.83
  5. Step 5: Solve for x
    x = 138,689,402,277.83/543,953.93
  6. Step 6: Final answer
    x = 254,965.35

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Double scale
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Similar ratio
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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.