Home / 1,321,139.60-1,823,104.68-717,526.16

Finding the Fourth Proportional to 1,321,139.60, 1,823,104.68 and 717,526.16

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Solution

The fourth proportional to 1,321,139.60, 1,823,104.68 and 717,526.16 is: 990,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,139.60 : 1,823,104.68 = 717,526.16 : x
  2. Step 2: Convert to fraction form
    1,321,139.60/1,823,104.68 = 717,526.16/x
  3. Step 3: Cross multiply
    1,321,139.60x = 1,823,104.68 × 717,526.16
  4. Step 4: Simplify right side
    1,321,139.60x = 1,308,125,300,318.43
  5. Step 5: Solve for x
    x = 1,308,125,300,318.43/1,321,139.60
  6. Step 6: Final answer
    x = 990,149.19

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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.