Home / 451,000.09-621,950.79-269,683.21

Finding the Fourth Proportional to 451,000.09, 621,950.79 and 269,683.21

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Solution

The fourth proportional to 451,000.09, 621,950.79 and 269,683.21 is: 371,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,000.09 : 621,950.79 = 269,683.21 : x
  2. Step 2: Convert to fraction form
    451,000.09/621,950.79 = 269,683.21/x
  3. Step 3: Cross multiply
    451,000.09x = 621,950.79 × 269,683.21
  4. Step 4: Simplify right side
    451,000.09x = 167,729,685,509.24
  5. Step 5: Solve for x
    x = 167,729,685,509.24/451,000.09
  6. Step 6: Final answer
    x = 371,906.10

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1.5x scale

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.