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Finding the Fourth Proportional to 618,280.55, 927,554.27 and 191,808.06

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Solution

The fourth proportional to 618,280.55, 927,554.27 and 191,808.06 is: 287,753.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,280.55 : 927,554.27 = 191,808.06 : x
  2. Step 2: Convert to fraction form
    618,280.55/927,554.27 = 191,808.06/x
  3. Step 3: Cross multiply
    618,280.55x = 927,554.27 × 191,808.06
  4. Step 4: Simplify right side
    618,280.55x = 177,912,385,073.42
  5. Step 5: Solve for x
    x = 177,912,385,073.42/618,280.55
  6. Step 6: Final answer
    x = 287,753.49

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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.