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Finding the Fourth Proportional to 483,064.40, 724,596.60 and 437,963.60

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Solution

The fourth proportional to 483,064.40, 724,596.60 and 437,963.60 is: 656,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,064.40 : 724,596.60 = 437,963.60 : x
  2. Step 2: Convert to fraction form
    483,064.40/724,596.60 = 437,963.60/x
  3. Step 3: Cross multiply
    483,064.40x = 724,596.60 × 437,963.60
  4. Step 4: Simplify right side
    483,064.40x = 317,346,935,483.76
  5. Step 5: Solve for x
    x = 317,346,935,483.76/483,064.40
  6. Step 6: Final answer
    x = 656,945.40

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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.