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Finding the Fourth Proportional to 734,477.40, 1,101,716.10 and 419,549.40

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Solution

The fourth proportional to 734,477.40, 1,101,716.10 and 419,549.40 is: 629,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,477.40 : 1,101,716.10 = 419,549.40 : x
  2. Step 2: Convert to fraction form
    734,477.40/1,101,716.10 = 419,549.40/x
  3. Step 3: Cross multiply
    734,477.40x = 1,101,716.10 × 419,549.40
  4. Step 4: Simplify right side
    734,477.40x = 462,224,328,725.34
  5. Step 5: Solve for x
    x = 462,224,328,725.34/734,477.40
  6. Step 6: Final answer
    x = 629,324.10

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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.