Home / 739,360.40-1,109,040.60-407,584.40

Finding the Fourth Proportional to 739,360.40, 1,109,040.60 and 407,584.40

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Solution

The fourth proportional to 739,360.40, 1,109,040.60 and 407,584.40 is: 611,376.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,360.40 : 1,109,040.60 = 407,584.40 : x
  2. Step 2: Convert to fraction form
    739,360.40/1,109,040.60 = 407,584.40/x
  3. Step 3: Cross multiply
    739,360.40x = 1,109,040.60 × 407,584.40
  4. Step 4: Simplify right side
    739,360.40x = 452,027,647,526.64
  5. Step 5: Solve for x
    x = 452,027,647,526.64/739,360.40
  6. Step 6: Final answer
    x = 611,376.60

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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.