Home / 931,317.50-1,286,193.91-641,682.16

Finding the Fourth Proportional to 931,317.50, 1,286,193.91 and 641,682.16

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Solution

The fourth proportional to 931,317.50, 1,286,193.91 and 641,682.16 is: 886,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,317.50 : 1,286,193.91 = 641,682.16 : x
  2. Step 2: Convert to fraction form
    931,317.50/1,286,193.91 = 641,682.16/x
  3. Step 3: Cross multiply
    931,317.50x = 1,286,193.91 × 641,682.16
  4. Step 4: Simplify right side
    931,317.50x = 825,327,686,347.65
  5. Step 5: Solve for x
    x = 825,327,686,347.65/931,317.50
  6. Step 6: Final answer
    x = 886,193.68

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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.