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Finding the Fourth Proportional to 572,406.20, 858,609.30 and 404,444.60

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Solution

The fourth proportional to 572,406.20, 858,609.30 and 404,444.60 is: 606,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,406.20 : 858,609.30 = 404,444.60 : x
  2. Step 2: Convert to fraction form
    572,406.20/858,609.30 = 404,444.60/x
  3. Step 3: Cross multiply
    572,406.20x = 858,609.30 × 404,444.60
  4. Step 4: Simplify right side
    572,406.20x = 347,259,894,894.78
  5. Step 5: Solve for x
    x = 347,259,894,894.78/572,406.20
  6. Step 6: Final answer
    x = 606,666.90

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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.