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Finding the Fourth Proportional to 635,520.51, 877,145.60 and 377,540.76

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Solution

The fourth proportional to 635,520.51, 877,145.60 and 377,540.76 is: 521,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,520.51 : 877,145.60 = 377,540.76 : x
  2. Step 2: Convert to fraction form
    635,520.51/877,145.60 = 377,540.76/x
  3. Step 3: Cross multiply
    635,520.51x = 877,145.60 × 377,540.76
  4. Step 4: Simplify right side
    635,520.51x = 331,158,214,566.95
  5. Step 5: Solve for x
    x = 331,158,214,566.95/635,520.51
  6. Step 6: Final answer
    x = 521,081.87

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.