Home / 991,464.60-1,368,217.53-561,826.83

Finding the Fourth Proportional to 991,464.60, 1,368,217.53 and 561,826.83

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Solution

The fourth proportional to 991,464.60, 1,368,217.53 and 561,826.83 is: 775,318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,464.60 : 1,368,217.53 = 561,826.83 : x
  2. Step 2: Convert to fraction form
    991,464.60/1,368,217.53 = 561,826.83/x
  3. Step 3: Cross multiply
    991,464.60x = 1,368,217.53 × 561,826.83
  4. Step 4: Simplify right side
    991,464.60x = 768,701,317,630.33
  5. Step 5: Solve for x
    x = 768,701,317,630.33/991,464.60
  6. Step 6: Final answer
    x = 775,318.98

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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.