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Finding the Fourth Proportional to 618,902.24, 928,366.32 and 198,176.90

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Solution

The fourth proportional to 618,902.24, 928,366.32 and 198,176.90 is: 297,269.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,902.24 : 928,366.32 = 198,176.90 : x
  2. Step 2: Convert to fraction form
    618,902.24/928,366.32 = 198,176.90/x
  3. Step 3: Cross multiply
    618,902.24x = 928,366.32 × 198,176.90
  4. Step 4: Simplify right side
    618,902.24x = 183,980,759,362.01
  5. Step 5: Solve for x
    x = 183,980,759,362.01/618,902.24
  6. Step 6: Final answer
    x = 297,269.50

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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.