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Finding the Fourth Proportional to 569,724.40, 854,586.60 and 286,289.20

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Solution

The fourth proportional to 569,724.40, 854,586.60 and 286,289.20 is: 429,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,724.40 : 854,586.60 = 286,289.20 : x
  2. Step 2: Convert to fraction form
    569,724.40/854,586.60 = 286,289.20/x
  3. Step 3: Cross multiply
    569,724.40x = 854,586.60 × 286,289.20
  4. Step 4: Simplify right side
    569,724.40x = 244,658,914,044.72
  5. Step 5: Solve for x
    x = 244,658,914,044.72/569,724.40
  6. Step 6: Final answer
    x = 429,433.80

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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.