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Finding the Fourth Proportional to 536,534.90, 805,485.26 and 347,785.11

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Solution

The fourth proportional to 536,534.90, 805,485.26 and 347,785.11 is: 522,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,534.90 : 805,485.26 = 347,785.11 : x
  2. Step 2: Convert to fraction form
    536,534.90/805,485.26 = 347,785.11/x
  3. Step 3: Cross multiply
    536,534.90x = 805,485.26 × 347,785.11
  4. Step 4: Simplify right side
    536,534.90x = 280,135,779,752.48
  5. Step 5: Solve for x
    x = 280,135,779,752.48/536,534.90
  6. Step 6: Final answer
    x = 522,120.33

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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.