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Finding the Fourth Proportional to 611,114.21, 843,441.98 and 352,944.75

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Solution

The fourth proportional to 611,114.21, 843,441.98 and 352,944.75 is: 487,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,114.21 : 843,441.98 = 352,944.75 : x
  2. Step 2: Convert to fraction form
    611,114.21/843,441.98 = 352,944.75/x
  3. Step 3: Cross multiply
    611,114.21x = 843,441.98 × 352,944.75
  4. Step 4: Simplify right side
    611,114.21x = 297,688,420,168.79
  5. Step 5: Solve for x
    x = 297,688,420,168.79/611,114.21
  6. Step 6: Final answer
    x = 487,124.04

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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.