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Finding the Fourth Proportional to 618,385, 927,577.50 and 151,441

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Solution

The fourth proportional to 618,385, 927,577.50 and 151,441 is: 227,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,385 : 927,577.50 = 151,441 : x
  2. Step 2: Convert to fraction form
    618,385/927,577.50 = 151,441/x
  3. Step 3: Cross multiply
    618,385x = 927,577.50 × 151,441
  4. Step 4: Simplify right side
    618,385x = 140,473,264,177.50
  5. Step 5: Solve for x
    x = 140,473,264,177.50/618,385
  6. Step 6: Final answer
    x = 227,161.50

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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.