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Finding the Fourth Proportional to 572,373.76, 858,560.70 and 198,396.76

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Solution

The fourth proportional to 572,373.76, 858,560.70 and 198,396.76 is: 297,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,373.76 : 858,560.70 = 198,396.76 : x
  2. Step 2: Convert to fraction form
    572,373.76/858,560.70 = 198,396.76/x
  3. Step 3: Cross multiply
    572,373.76x = 858,560.70 × 198,396.76
  4. Step 4: Simplify right side
    572,373.76x = 170,335,661,143.33
  5. Step 5: Solve for x
    x = 170,335,661,143.33/572,373.76
  6. Step 6: Final answer
    x = 297,595.16

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Half scale
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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.