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Finding the Fourth Proportional to 362,511.90, 542,692.65 and 269,430.30

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Solution

The fourth proportional to 362,511.90, 542,692.65 and 269,430.30 is: 403,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,511.90 : 542,692.65 = 269,430.30 : x
  2. Step 2: Convert to fraction form
    362,511.90/542,692.65 = 269,430.30/x
  3. Step 3: Cross multiply
    362,511.90x = 542,692.65 × 269,430.30
  4. Step 4: Simplify right side
    362,511.90x = 146,217,843,497.30
  5. Step 5: Solve for x
    x = 146,217,843,497.30/362,511.90
  6. Step 6: Final answer
    x = 403,346.33

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1.5x scale

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.