Home / 836,246.40-1,254,369.60-393,878.40

Finding the Fourth Proportional to 836,246.40, 1,254,369.60 and 393,878.40

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Solution

The fourth proportional to 836,246.40, 1,254,369.60 and 393,878.40 is: 590,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,246.40 : 1,254,369.60 = 393,878.40 : x
  2. Step 2: Convert to fraction form
    836,246.40/1,254,369.60 = 393,878.40/x
  3. Step 3: Cross multiply
    836,246.40x = 1,254,369.60 × 393,878.40
  4. Step 4: Simplify right side
    836,246.40x = 494,069,091,056.64
  5. Step 5: Solve for x
    x = 494,069,091,056.64/836,246.40
  6. Step 6: Final answer
    x = 590,817.60

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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.