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Finding the Fourth Proportional to 572,640.55, 858,818.86 and 193,552.86

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Solution

The fourth proportional to 572,640.55, 858,818.86 and 193,552.86 is: 290,281.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,640.55 : 858,818.86 = 193,552.86 : x
  2. Step 2: Convert to fraction form
    572,640.55/858,818.86 = 193,552.86/x
  3. Step 3: Cross multiply
    572,640.55x = 858,818.86 × 193,552.86
  4. Step 4: Simplify right side
    572,640.55x = 166,226,846,574.94
  5. Step 5: Solve for x
    x = 166,226,846,574.94/572,640.55
  6. Step 6: Final answer
    x = 290,281.31

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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.