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Finding the Fourth Proportional to 483,137.70, 724,706.55 and 441,803.40

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Solution

The fourth proportional to 483,137.70, 724,706.55 and 441,803.40 is: 662,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,137.70 : 724,706.55 = 441,803.40 : x
  2. Step 2: Convert to fraction form
    483,137.70/724,706.55 = 441,803.40/x
  3. Step 3: Cross multiply
    483,137.70x = 724,706.55 × 441,803.40
  4. Step 4: Simplify right side
    483,137.70x = 320,177,817,792.27
  5. Step 5: Solve for x
    x = 320,177,817,792.27/483,137.70
  6. Step 6: Final answer
    x = 662,705.10

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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.