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Finding the Fourth Proportional to 611,194.35, 843,358.23 and 339,264.30

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Solution

The fourth proportional to 611,194.35, 843,358.23 and 339,264.30 is: 468,134.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,194.35 : 843,358.23 = 339,264.30 : x
  2. Step 2: Convert to fraction form
    611,194.35/843,358.23 = 339,264.30/x
  3. Step 3: Cross multiply
    611,194.35x = 843,358.23 × 339,264.30
  4. Step 4: Simplify right side
    611,194.35x = 286,121,339,550.19
  5. Step 5: Solve for x
    x = 286,121,339,550.19/611,194.35
  6. Step 6: Final answer
    x = 468,134.79

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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.