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Finding the Fourth Proportional to 573,022.98, 790,766.01 and 318,368.70

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Solution

The fourth proportional to 573,022.98, 790,766.01 and 318,368.70 is: 439,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,022.98 : 790,766.01 = 318,368.70 : x
  2. Step 2: Convert to fraction form
    573,022.98/790,766.01 = 318,368.70/x
  3. Step 3: Cross multiply
    573,022.98x = 790,766.01 × 318,368.70
  4. Step 4: Simplify right side
    573,022.98x = 251,755,146,607.89
  5. Step 5: Solve for x
    x = 251,755,146,607.89/573,022.98
  6. Step 6: Final answer
    x = 439,345.64

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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.