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Finding the Fourth Proportional to 585,431.15, 807,884.48 and 330,776.87

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Solution

The fourth proportional to 585,431.15, 807,884.48 and 330,776.87 is: 456,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,431.15 : 807,884.48 = 330,776.87 : x
  2. Step 2: Convert to fraction form
    585,431.15/807,884.48 = 330,776.87/x
  3. Step 3: Cross multiply
    585,431.15x = 807,884.48 × 330,776.87
  4. Step 4: Simplify right side
    585,431.15x = 267,229,496,403.50
  5. Step 5: Solve for x
    x = 267,229,496,403.50/585,431.15
  6. Step 6: Final answer
    x = 456,466.14

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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.