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Finding the Fourth Proportional to 590,608.40, 885,912.60 and 492,630.80

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Solution

The fourth proportional to 590,608.40, 885,912.60 and 492,630.80 is: 738,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,608.40 : 885,912.60 = 492,630.80 : x
  2. Step 2: Convert to fraction form
    590,608.40/885,912.60 = 492,630.80/x
  3. Step 3: Cross multiply
    590,608.40x = 885,912.60 × 492,630.80
  4. Step 4: Simplify right side
    590,608.40x = 436,427,832,868.08
  5. Step 5: Solve for x
    x = 436,427,832,868.08/590,608.40
  6. Step 6: Final answer
    x = 738,946.20

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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.