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Finding the Fourth Proportional to 671,156.12, 926,198.52 and 384,692.96

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Solution

The fourth proportional to 671,156.12, 926,198.52 and 384,692.96 is: 530,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,156.12 : 926,198.52 = 384,692.96 : x
  2. Step 2: Convert to fraction form
    671,156.12/926,198.52 = 384,692.96/x
  3. Step 3: Cross multiply
    671,156.12x = 926,198.52 × 384,692.96
  4. Step 4: Simplify right side
    671,156.12x = 356,302,050,206.42
  5. Step 5: Solve for x
    x = 356,302,050,206.42/671,156.12
  6. Step 6: Final answer
    x = 530,878.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.