Home / 1,328,656.19-1,989,987.89-617,187.02

Finding the Fourth Proportional to 1,328,656.19, 1,989,987.89 and 617,187.02

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Solution

The fourth proportional to 1,328,656.19, 1,989,987.89 and 617,187.02 is: 924,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,656.19 : 1,989,987.89 = 617,187.02 : x
  2. Step 2: Convert to fraction form
    1,328,656.19/1,989,987.89 = 617,187.02/x
  3. Step 3: Cross multiply
    1,328,656.19x = 1,989,987.89 × 617,187.02
  4. Step 4: Simplify right side
    1,328,656.19x = 1,228,194,682,629.31
  5. Step 5: Solve for x
    x = 1,228,194,682,629.31/1,328,656.19
  6. Step 6: Final answer
    x = 924,388.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.