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Finding the Fourth Proportional to 606,825.05, 910,506.15 and 318,568.88

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Solution

The fourth proportional to 606,825.05, 910,506.15 and 318,568.88 is: 477,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,825.05 : 910,506.15 = 318,568.88 : x
  2. Step 2: Convert to fraction form
    606,825.05/910,506.15 = 318,568.88/x
  3. Step 3: Cross multiply
    606,825.05x = 910,506.15 × 318,568.88
  4. Step 4: Simplify right side
    606,825.05x = 290,058,926,714.88
  5. Step 5: Solve for x
    x = 290,058,926,714.88/606,825.05
  6. Step 6: Final answer
    x = 477,994.32

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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.