Home / 383,098.23-528,681.20-221,964.93

Finding the Fourth Proportional to 383,098.23, 528,681.20 and 221,964.93

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Solution

The fourth proportional to 383,098.23, 528,681.20 and 221,964.93 is: 306,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,098.23 : 528,681.20 = 221,964.93 : x
  2. Step 2: Convert to fraction form
    383,098.23/528,681.20 = 221,964.93/x
  3. Step 3: Cross multiply
    383,098.23x = 528,681.20 × 221,964.93
  4. Step 4: Simplify right side
    383,098.23x = 117,348,684,440.49
  5. Step 5: Solve for x
    x = 117,348,684,440.49/383,098.23
  6. Step 6: Final answer
    x = 306,314.87

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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.