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Finding the Fourth Proportional to 564,817.40, 847,226.10 and 190,840.40

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Solution

The fourth proportional to 564,817.40, 847,226.10 and 190,840.40 is: 286,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,817.40 : 847,226.10 = 190,840.40 : x
  2. Step 2: Convert to fraction form
    564,817.40/847,226.10 = 190,840.40/x
  3. Step 3: Cross multiply
    564,817.40x = 847,226.10 × 190,840.40
  4. Step 4: Simplify right side
    564,817.40x = 161,684,967,814.44
  5. Step 5: Solve for x
    x = 161,684,967,814.44/564,817.40
  6. Step 6: Final answer
    x = 286,260.60

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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.