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Finding the Fourth Proportional to 469,069.91, 647,385.96 and 297,003.87

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Solution

The fourth proportional to 469,069.91, 647,385.96 and 297,003.87 is: 409,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,069.91 : 647,385.96 = 297,003.87 : x
  2. Step 2: Convert to fraction form
    469,069.91/647,385.96 = 297,003.87/x
  3. Step 3: Cross multiply
    469,069.91x = 647,385.96 × 297,003.87
  4. Step 4: Simplify right side
    469,069.91x = 192,276,135,503.67
  5. Step 5: Solve for x
    x = 192,276,135,503.67/469,069.91
  6. Step 6: Final answer
    x = 409,909.34

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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.