Home / 1,245,764.16-1,719,153.90-672,804.36

Finding the Fourth Proportional to 1,245,764.16, 1,719,153.90 and 672,804.36

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Solution

The fourth proportional to 1,245,764.16, 1,719,153.90 and 672,804.36 is: 928,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,764.16 : 1,719,153.90 = 672,804.36 : x
  2. Step 2: Convert to fraction form
    1,245,764.16/1,719,153.90 = 672,804.36/x
  3. Step 3: Cross multiply
    1,245,764.16x = 1,719,153.90 × 672,804.36
  4. Step 4: Simplify right side
    1,245,764.16x = 1,156,654,239,431.00
  5. Step 5: Solve for x
    x = 1,156,654,239,431.00/1,245,764.16
  6. Step 6: Final answer
    x = 928,469.67

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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.