Home / 840,704.67-1,160,198.08-478,180.77

Finding the Fourth Proportional to 840,704.67, 1,160,198.08 and 478,180.77

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Solution

The fourth proportional to 840,704.67, 1,160,198.08 and 478,180.77 is: 659,904.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,704.67 : 1,160,198.08 = 478,180.77 : x
  2. Step 2: Convert to fraction form
    840,704.67/1,160,198.08 = 478,180.77/x
  3. Step 3: Cross multiply
    840,704.67x = 1,160,198.08 × 478,180.77
  4. Step 4: Simplify right side
    840,704.67x = 554,784,408,390.49
  5. Step 5: Solve for x
    x = 554,784,408,390.49/840,704.67
  6. Step 6: Final answer
    x = 659,904.04

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Half scale
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Double scale
Find fourth proportional to 840,705.67, 1,160,199.46 and 478,181.77
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.