Home / 919,336.23-1,379,004.35-288,299.25

Finding the Fourth Proportional to 919,336.23, 1,379,004.35 and 288,299.25

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Solution

The fourth proportional to 919,336.23, 1,379,004.35 and 288,299.25 is: 432,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,336.23 : 1,379,004.35 = 288,299.25 : x
  2. Step 2: Convert to fraction form
    919,336.23/1,379,004.35 = 288,299.25/x
  3. Step 3: Cross multiply
    919,336.23x = 1,379,004.35 × 288,299.25
  4. Step 4: Simplify right side
    919,336.23x = 397,565,918,410.24
  5. Step 5: Solve for x
    x = 397,565,918,410.24/919,336.23
  6. Step 6: Final answer
    x = 432,448.88

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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.