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Finding the Fourth Proportional to 536,447.70, 803,359.35 and 255,636.90

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Solution

The fourth proportional to 536,447.70, 803,359.35 and 255,636.90 is: 382,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,447.70 : 803,359.35 = 255,636.90 : x
  2. Step 2: Convert to fraction form
    536,447.70/803,359.35 = 255,636.90/x
  3. Step 3: Cross multiply
    536,447.70x = 803,359.35 × 255,636.90
  4. Step 4: Simplify right side
    536,447.70x = 205,368,293,820.02
  5. Step 5: Solve for x
    x = 205,368,293,820.02/536,447.70
  6. Step 6: Final answer
    x = 382,830.04

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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.