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Finding the Fourth Proportional to 577,860.72, 866,575.55 and 198,674.10

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Solution

The fourth proportional to 577,860.72, 866,575.55 and 198,674.10 is: 297,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,860.72 : 866,575.55 = 198,674.10 : x
  2. Step 2: Convert to fraction form
    577,860.72/866,575.55 = 198,674.10/x
  3. Step 3: Cross multiply
    577,860.72x = 866,575.55 × 198,674.10
  4. Step 4: Simplify right side
    577,860.72x = 172,166,116,484.89
  5. Step 5: Solve for x
    x = 172,166,116,484.89/577,860.72
  6. Step 6: Final answer
    x = 297,937.05

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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.