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Finding the Fourth Proportional to 585,445.95, 807,904.89 and 330,791.67

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Solution

The fourth proportional to 585,445.95, 807,904.89 and 330,791.67 is: 456,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,445.95 : 807,904.89 = 330,791.67 : x
  2. Step 2: Convert to fraction form
    585,445.95/807,904.89 = 330,791.67/x
  3. Step 3: Cross multiply
    585,445.95x = 807,904.89 × 330,791.67
  4. Step 4: Simplify right side
    585,445.95x = 267,248,207,764.27
  5. Step 5: Solve for x
    x = 267,248,207,764.27/585,445.95
  6. Step 6: Final answer
    x = 456,486.56

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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.