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Finding the Fourth Proportional to 573,099.56, 790,842.66 and 318,442.04

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Solution

The fourth proportional to 573,099.56, 790,842.66 and 318,442.04 is: 439,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,099.56 : 790,842.66 = 318,442.04 : x
  2. Step 2: Convert to fraction form
    573,099.56/790,842.66 = 318,442.04/x
  3. Step 3: Cross multiply
    573,099.56x = 790,842.66 × 318,442.04
  4. Step 4: Simplify right side
    573,099.56x = 251,837,549,969.43
  5. Step 5: Solve for x
    x = 251,837,549,969.43/573,099.56
  6. Step 6: Final answer
    x = 439,430.72

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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.