Home / 784,466.88-1,177,330.80-405,498.60

Finding the Fourth Proportional to 784,466.88, 1,177,330.80 and 405,498.60

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Solution

The fourth proportional to 784,466.88, 1,177,330.80 and 405,498.60 is: 608,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,466.88 : 1,177,330.80 = 405,498.60 : x
  2. Step 2: Convert to fraction form
    784,466.88/1,177,330.80 = 405,498.60/x
  3. Step 3: Cross multiply
    784,466.88x = 1,177,330.80 × 405,498.60
  4. Step 4: Simplify right side
    784,466.88x = 477,405,991,136.88
  5. Step 5: Solve for x
    x = 477,405,991,136.88/784,466.88
  6. Step 6: Final answer
    x = 608,573.80

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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.