Home / 1,077,136.40-1,615,704.60-911,248.40

Finding the Fourth Proportional to 1,077,136.40, 1,615,704.60 and 911,248.40

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Solution

The fourth proportional to 1,077,136.40, 1,615,704.60 and 911,248.40 is: 1,366,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,136.40 : 1,615,704.60 = 911,248.40 : x
  2. Step 2: Convert to fraction form
    1,077,136.40/1,615,704.60 = 911,248.40/x
  3. Step 3: Cross multiply
    1,077,136.40x = 1,615,704.60 × 911,248.40
  4. Step 4: Simplify right side
    1,077,136.40x = 1,472,308,231,622.64
  5. Step 5: Solve for x
    x = 1,472,308,231,622.64/1,077,136.40
  6. Step 6: Final answer
    x = 1,366,872.60

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Double scale
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Similar ratio
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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.