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Finding the Fourth Proportional to 589,427.80, 884,141.70 and 190,081.60

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Solution

The fourth proportional to 589,427.80, 884,141.70 and 190,081.60 is: 285,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,427.80 : 884,141.70 = 190,081.60 : x
  2. Step 2: Convert to fraction form
    589,427.80/884,141.70 = 190,081.60/x
  3. Step 3: Cross multiply
    589,427.80x = 884,141.70 × 190,081.60
  4. Step 4: Simplify right side
    589,427.80x = 168,059,068,962.72
  5. Step 5: Solve for x
    x = 168,059,068,962.72/589,427.80
  6. Step 6: Final answer
    x = 285,122.40

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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.