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Finding the Fourth Proportional to 671,000.76, 925,990.18 and 365,080.77

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Solution

The fourth proportional to 671,000.76, 925,990.18 and 365,080.77 is: 503,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,000.76 : 925,990.18 = 365,080.77 : x
  2. Step 2: Convert to fraction form
    671,000.76/925,990.18 = 365,080.77/x
  3. Step 3: Cross multiply
    671,000.76x = 925,990.18 × 365,080.77
  4. Step 4: Simplify right side
    671,000.76x = 338,061,207,014.14
  5. Step 5: Solve for x
    x = 338,061,207,014.14/671,000.76
  6. Step 6: Final answer
    x = 503,816.43

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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.