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Finding the Fourth Proportional to 297,692.80, 446,539.20 and 185,718.40

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Solution

The fourth proportional to 297,692.80, 446,539.20 and 185,718.40 is: 278,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,692.80 : 446,539.20 = 185,718.40 : x
  2. Step 2: Convert to fraction form
    297,692.80/446,539.20 = 185,718.40/x
  3. Step 3: Cross multiply
    297,692.80x = 446,539.20 × 185,718.40
  4. Step 4: Simplify right side
    297,692.80x = 82,930,545,761.28
  5. Step 5: Solve for x
    x = 82,930,545,761.28/297,692.80
  6. Step 6: Final answer
    x = 278,577.60

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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.