Home / 1,328,003.88-1,991,455.80-416,881.91

Finding the Fourth Proportional to 1,328,003.88, 1,991,455.80 and 416,881.91

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Solution

The fourth proportional to 1,328,003.88, 1,991,455.80 and 416,881.91 is: 625,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,003.88 : 1,991,455.80 = 416,881.91 : x
  2. Step 2: Convert to fraction form
    1,328,003.88/1,991,455.80 = 416,881.91/x
  3. Step 3: Cross multiply
    1,328,003.88x = 1,991,455.80 × 416,881.91
  4. Step 4: Simplify right side
    1,328,003.88x = 830,201,887,627.30
  5. Step 5: Solve for x
    x = 830,201,887,627.30/1,328,003.88
  6. Step 6: Final answer
    x = 625,150.20

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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.