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Finding the Fourth Proportional to 573,266.40, 859,899.60 and 471,789.60

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Solution

The fourth proportional to 573,266.40, 859,899.60 and 471,789.60 is: 707,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,266.40 : 859,899.60 = 471,789.60 : x
  2. Step 2: Convert to fraction form
    573,266.40/859,899.60 = 471,789.60/x
  3. Step 3: Cross multiply
    573,266.40x = 859,899.60 × 471,789.60
  4. Step 4: Simplify right side
    573,266.40x = 405,691,688,324.16
  5. Step 5: Solve for x
    x = 405,691,688,324.16/573,266.40
  6. Step 6: Final answer
    x = 707,684.40

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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.