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Finding the Fourth Proportional to 483,214.60, 724,821.90 and 413,230.60

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Solution

The fourth proportional to 483,214.60, 724,821.90 and 413,230.60 is: 619,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,214.60 : 724,821.90 = 413,230.60 : x
  2. Step 2: Convert to fraction form
    483,214.60/724,821.90 = 413,230.60/x
  3. Step 3: Cross multiply
    483,214.60x = 724,821.90 × 413,230.60
  4. Step 4: Simplify right side
    483,214.60x = 299,518,588,630.14
  5. Step 5: Solve for x
    x = 299,518,588,630.14/483,214.60
  6. Step 6: Final answer
    x = 619,845.90

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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.