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Finding the Fourth Proportional to 452,862.72, 624,291.91 and 316,473.21

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Solution

The fourth proportional to 452,862.72, 624,291.91 and 316,473.21 is: 436,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,862.72 : 624,291.91 = 316,473.21 : x
  2. Step 2: Convert to fraction form
    452,862.72/624,291.91 = 316,473.21/x
  3. Step 3: Cross multiply
    452,862.72x = 624,291.91 × 316,473.21
  4. Step 4: Simplify right side
    452,862.72x = 197,571,663,943.55
  5. Step 5: Solve for x
    x = 197,571,663,943.55/452,862.72
  6. Step 6: Final answer
    x = 436,272.75

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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.