Home / 1,321,239.75-1,823,312.69-717,627.75

Finding the Fourth Proportional to 1,321,239.75, 1,823,312.69 and 717,627.75

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Solution

The fourth proportional to 1,321,239.75, 1,823,312.69 and 717,627.75 is: 990,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,239.75 : 1,823,312.69 = 717,627.75 : x
  2. Step 2: Convert to fraction form
    1,321,239.75/1,823,312.69 = 717,627.75/x
  3. Step 3: Cross multiply
    1,321,239.75x = 1,823,312.69 × 717,627.75
  4. Step 4: Simplify right side
    1,321,239.75x = 1,308,459,779,683.01
  5. Step 5: Solve for x
    x = 1,308,459,779,683.01/1,321,239.75
  6. Step 6: Final answer
    x = 990,327.29

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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.