Home / 810,325.86-1,118,245.41-447,774.72

Finding the Fourth Proportional to 810,325.86, 1,118,245.41 and 447,774.72

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Solution

The fourth proportional to 810,325.86, 1,118,245.41 and 447,774.72 is: 617,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,325.86 : 1,118,245.41 = 447,774.72 : x
  2. Step 2: Convert to fraction form
    810,325.86/1,118,245.41 = 447,774.72/x
  3. Step 3: Cross multiply
    810,325.86x = 1,118,245.41 × 447,774.72
  4. Step 4: Simplify right side
    810,325.86x = 500,722,025,354.04
  5. Step 5: Solve for x
    x = 500,722,025,354.04/810,325.86
  6. Step 6: Final answer
    x = 617,926.75

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Double scale
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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.