Home / 899,743.83-1,241,646.30-491,847.36

Finding the Fourth Proportional to 899,743.83, 1,241,646.30 and 491,847.36

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Solution

The fourth proportional to 899,743.83, 1,241,646.30 and 491,847.36 is: 678,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,743.83 : 1,241,646.30 = 491,847.36 : x
  2. Step 2: Convert to fraction form
    899,743.83/1,241,646.30 = 491,847.36/x
  3. Step 3: Cross multiply
    899,743.83x = 1,241,646.30 × 491,847.36
  4. Step 4: Simplify right side
    899,743.83x = 610,700,454,708.77
  5. Step 5: Solve for x
    x = 610,700,454,708.77/899,743.83
  6. Step 6: Final answer
    x = 678,749.26

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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.