Home / 658,110.80-987,166.20-445,534.40

Finding the Fourth Proportional to 658,110.80, 987,166.20 and 445,534.40

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Solution

The fourth proportional to 658,110.80, 987,166.20 and 445,534.40 is: 668,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,110.80 : 987,166.20 = 445,534.40 : x
  2. Step 2: Convert to fraction form
    658,110.80/987,166.20 = 445,534.40/x
  3. Step 3: Cross multiply
    658,110.80x = 987,166.20 × 445,534.40
  4. Step 4: Simplify right side
    658,110.80x = 439,816,500,617.28
  5. Step 5: Solve for x
    x = 439,816,500,617.28/658,110.80
  6. Step 6: Final answer
    x = 668,301.60

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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.