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Finding the Fourth Proportional to 569,280.80, 853,690.80 and 195,111.20

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Solution

The fourth proportional to 569,280.80, 853,690.80 and 195,111.20 is: 292,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,280.80 : 853,690.80 = 195,111.20 : x
  2. Step 2: Convert to fraction form
    569,280.80/853,690.80 = 195,111.20/x
  3. Step 3: Cross multiply
    569,280.80x = 853,690.80 × 195,111.20
  4. Step 4: Simplify right side
    569,280.80x = 166,564,636,416.96
  5. Step 5: Solve for x
    x = 166,564,636,416.96/569,280.80
  6. Step 6: Final answer
    x = 292,587.83

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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.