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Finding the Fourth Proportional to 456,000.18, 683,631.30 and 189,960.54

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Solution

The fourth proportional to 456,000.18, 683,631.30 and 189,960.54 is: 284,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,000.18 : 683,631.30 = 189,960.54 : x
  2. Step 2: Convert to fraction form
    456,000.18/683,631.30 = 189,960.54/x
  3. Step 3: Cross multiply
    456,000.18x = 683,631.30 × 189,960.54
  4. Step 4: Simplify right side
    456,000.18x = 129,862,970,908.90
  5. Step 5: Solve for x
    x = 129,862,970,908.90/456,000.18
  6. Step 6: Final answer
    x = 284,787.10

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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.