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Finding the Fourth Proportional to 555,391.64, 832,526.58 and 218,668.62

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Solution

The fourth proportional to 555,391.64, 832,526.58 and 218,668.62 is: 327,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,391.64 : 832,526.58 = 218,668.62 : x
  2. Step 2: Convert to fraction form
    555,391.64/832,526.58 = 218,668.62/x
  3. Step 3: Cross multiply
    555,391.64x = 832,526.58 × 218,668.62
  4. Step 4: Simplify right side
    555,391.64x = 182,047,438,361.92
  5. Step 5: Solve for x
    x = 182,047,438,361.92/555,391.64
  6. Step 6: Final answer
    x = 327,782.10

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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.