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Finding the Fourth Proportional to 607,312.11, 911,520.99 and 323,241.16

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Solution

The fourth proportional to 607,312.11, 911,520.99 and 323,241.16 is: 485,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,312.11 : 911,520.99 = 323,241.16 : x
  2. Step 2: Convert to fraction form
    607,312.11/911,520.99 = 323,241.16/x
  3. Step 3: Cross multiply
    607,312.11x = 911,520.99 × 323,241.16
  4. Step 4: Simplify right side
    607,312.11x = 294,641,102,171.95
  5. Step 5: Solve for x
    x = 294,641,102,171.95/607,312.11
  6. Step 6: Final answer
    x = 485,155.98

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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.