Home / 789,196.51-1,089,197.85-445,103.11

Finding the Fourth Proportional to 789,196.51, 1,089,197.85 and 445,103.11

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Solution

The fourth proportional to 789,196.51, 1,089,197.85 and 445,103.11 is: 614,302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,196.51 : 1,089,197.85 = 445,103.11 : x
  2. Step 2: Convert to fraction form
    789,196.51/1,089,197.85 = 445,103.11/x
  3. Step 3: Cross multiply
    789,196.51x = 1,089,197.85 × 445,103.11
  4. Step 4: Simplify right side
    789,196.51x = 484,805,350,440.31
  5. Step 5: Solve for x
    x = 484,805,350,440.31/789,196.51
  6. Step 6: Final answer
    x = 614,302.45

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.