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Finding the Fourth Proportional to 309,692.90, 464,539.35 and 309,692.90

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Solution

The fourth proportional to 309,692.90, 464,539.35 and 309,692.90 is: 464,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,692.90 : 464,539.35 = 309,692.90 : x
  2. Step 2: Convert to fraction form
    309,692.90/464,539.35 = 309,692.90/x
  3. Step 3: Cross multiply
    309,692.90x = 464,539.35 × 309,692.90
  4. Step 4: Simplify right side
    309,692.90x = 143,864,538,465.62
  5. Step 5: Solve for x
    x = 143,864,538,465.62/309,692.90
  6. Step 6: Final answer
    x = 464,539.35

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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.