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Finding the Fourth Proportional to 483,205.70, 724,808.55 and 315,244.10

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Solution

The fourth proportional to 483,205.70, 724,808.55 and 315,244.10 is: 472,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,205.70 : 724,808.55 = 315,244.10 : x
  2. Step 2: Convert to fraction form
    483,205.70/724,808.55 = 315,244.10/x
  3. Step 3: Cross multiply
    483,205.70x = 724,808.55 × 315,244.10
  4. Step 4: Simplify right side
    483,205.70x = 228,491,619,017.06
  5. Step 5: Solve for x
    x = 228,491,619,017.06/483,205.70
  6. Step 6: Final answer
    x = 472,866.15

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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.