Home / 739,350.40-1,109,025.60-407,574.40

Finding the Fourth Proportional to 739,350.40, 1,109,025.60 and 407,574.40

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Solution

The fourth proportional to 739,350.40, 1,109,025.60 and 407,574.40 is: 611,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,350.40 : 1,109,025.60 = 407,574.40 : x
  2. Step 2: Convert to fraction form
    739,350.40/1,109,025.60 = 407,574.40/x
  3. Step 3: Cross multiply
    739,350.40x = 1,109,025.60 × 407,574.40
  4. Step 4: Simplify right side
    739,350.40x = 452,010,443,504.64
  5. Step 5: Solve for x
    x = 452,010,443,504.64/739,350.40
  6. Step 6: Final answer
    x = 611,361.60

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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.