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Finding the Fourth Proportional to 611,150.88, 843,397.20 and 339,236.28

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Solution

The fourth proportional to 611,150.88, 843,397.20 and 339,236.28 is: 468,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,150.88 : 843,397.20 = 339,236.28 : x
  2. Step 2: Convert to fraction form
    611,150.88/843,397.20 = 339,236.28/x
  3. Step 3: Cross multiply
    611,150.88x = 843,397.20 × 339,236.28
  4. Step 4: Simplify right side
    611,150.88x = 286,110,928,690.42
  5. Step 5: Solve for x
    x = 286,110,928,690.42/611,150.88
  6. Step 6: Final answer
    x = 468,151.05

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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.