Home / 919,435.69-1,379,153.53-254,587.69

Finding the Fourth Proportional to 919,435.69, 1,379,153.53 and 254,587.69

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Solution

The fourth proportional to 919,435.69, 1,379,153.53 and 254,587.69 is: 381,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,435.69 : 1,379,153.53 = 254,587.69 : x
  2. Step 2: Convert to fraction form
    919,435.69/1,379,153.53 = 254,587.69/x
  3. Step 3: Cross multiply
    919,435.69x = 1,379,153.53 × 254,587.69
  4. Step 4: Simplify right side
    919,435.69x = 351,115,511,358.05
  5. Step 5: Solve for x
    x = 351,115,511,358.05/919,435.69
  6. Step 6: Final answer
    x = 381,881.53

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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.