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Finding the Fourth Proportional to 572,370.52, 858,555.78 and 198,393.52

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Solution

The fourth proportional to 572,370.52, 858,555.78 and 198,393.52 is: 297,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,370.52 : 858,555.78 = 198,393.52 : x
  2. Step 2: Convert to fraction form
    572,370.52/858,555.78 = 198,393.52/x
  3. Step 3: Cross multiply
    572,370.52x = 858,555.78 × 198,393.52
  4. Step 4: Simplify right side
    572,370.52x = 170,331,903,310.55
  5. Step 5: Solve for x
    x = 170,331,903,310.55/572,370.52
  6. Step 6: Final answer
    x = 297,590.28

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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.