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Finding the Fourth Proportional to 734,605.40, 1,101,908.10 and 496,659.80

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Solution

The fourth proportional to 734,605.40, 1,101,908.10 and 496,659.80 is: 744,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,605.40 : 1,101,908.10 = 496,659.80 : x
  2. Step 2: Convert to fraction form
    734,605.40/1,101,908.10 = 496,659.80/x
  3. Step 3: Cross multiply
    734,605.40x = 1,101,908.10 × 496,659.80
  4. Step 4: Simplify right side
    734,605.40x = 547,273,456,564.38
  5. Step 5: Solve for x
    x = 547,273,456,564.38/734,605.40
  6. Step 6: Final answer
    x = 744,989.70

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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.