Home / 1,109,211.21-1,663,816.80-361,257.21

Finding the Fourth Proportional to 1,109,211.21, 1,663,816.80 and 361,257.21

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Solution

The fourth proportional to 1,109,211.21, 1,663,816.80 and 361,257.21 is: 541,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,211.21 : 1,663,816.80 = 361,257.21 : x
  2. Step 2: Convert to fraction form
    1,109,211.21/1,663,816.80 = 361,257.21/x
  3. Step 3: Cross multiply
    1,109,211.21x = 1,663,816.80 × 361,257.21
  4. Step 4: Simplify right side
    1,109,211.21x = 601,065,815,119.13
  5. Step 5: Solve for x
    x = 601,065,815,119.13/1,109,211.21
  6. Step 6: Final answer
    x = 541,885.81

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