Home / 1,118,793.83-1,678,190.74-408,729.60

Finding the Fourth Proportional to 1,118,793.83, 1,678,190.74 and 408,729.60

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Solution

The fourth proportional to 1,118,793.83, 1,678,190.74 and 408,729.60 is: 613,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,793.83 : 1,678,190.74 = 408,729.60 : x
  2. Step 2: Convert to fraction form
    1,118,793.83/1,678,190.74 = 408,729.60/x
  3. Step 3: Cross multiply
    1,118,793.83x = 1,678,190.74 × 408,729.60
  4. Step 4: Simplify right side
    1,118,793.83x = 685,926,228,862.08
  5. Step 5: Solve for x
    x = 685,926,228,862.08/1,118,793.83
  6. Step 6: Final answer
    x = 613,094.40

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Half scale
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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.