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Finding the Fourth Proportional to 572,682.83, 790,697.72 and 357,919.43

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Solution

The fourth proportional to 572,682.83, 790,697.72 and 357,919.43 is: 494,175.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,682.83 : 790,697.72 = 357,919.43 : x
  2. Step 2: Convert to fraction form
    572,682.83/790,697.72 = 357,919.43/x
  3. Step 3: Cross multiply
    572,682.83x = 790,697.72 × 357,919.43
  4. Step 4: Simplify right side
    572,682.83x = 283,006,075,455.10
  5. Step 5: Solve for x
    x = 283,006,075,455.10/572,682.83
  6. Step 6: Final answer
    x = 494,175.94

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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.