Home / 661,066.49-991,582.32-187,751.90

Finding the Fourth Proportional to 661,066.49, 991,582.32 and 187,751.90

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Solution

The fourth proportional to 661,066.49, 991,582.32 and 187,751.90 is: 281,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,066.49 : 991,582.32 = 187,751.90 : x
  2. Step 2: Convert to fraction form
    661,066.49/991,582.32 = 187,751.90/x
  3. Step 3: Cross multiply
    661,066.49x = 991,582.32 × 187,751.90
  4. Step 4: Simplify right side
    661,066.49x = 186,171,464,586.41
  5. Step 5: Solve for x
    x = 186,171,464,586.41/661,066.49
  6. Step 6: Final answer
    x = 281,622.90

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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.