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Finding the Fourth Proportional to 572,516.10, 858,774.15 and 362,391.30

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Solution

The fourth proportional to 572,516.10, 858,774.15 and 362,391.30 is: 543,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,516.10 : 858,774.15 = 362,391.30 : x
  2. Step 2: Convert to fraction form
    572,516.10/858,774.15 = 362,391.30/x
  3. Step 3: Cross multiply
    572,516.10x = 858,774.15 × 362,391.30
  4. Step 4: Simplify right side
    572,516.10x = 311,212,280,624.90
  5. Step 5: Solve for x
    x = 311,212,280,624.90/572,516.10
  6. Step 6: Final answer
    x = 543,586.95

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Double scale
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Similar ratio
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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.