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Finding the Fourth Proportional to 582,738.60, 874,136.70 and 302,802.60

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Solution

The fourth proportional to 582,738.60, 874,136.70 and 302,802.60 is: 454,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,738.60 : 874,136.70 = 302,802.60 : x
  2. Step 2: Convert to fraction form
    582,738.60/874,136.70 = 302,802.60/x
  3. Step 3: Cross multiply
    582,738.60x = 874,136.70 × 302,802.60
  4. Step 4: Simplify right side
    582,738.60x = 264,690,865,515.42
  5. Step 5: Solve for x
    x = 264,690,865,515.42/582,738.60
  6. Step 6: Final answer
    x = 454,218.87

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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.