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Finding the Fourth Proportional to 572,008.06, 789,371.22 and 317,358.64

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Solution

The fourth proportional to 572,008.06, 789,371.22 and 317,358.64 is: 437,954.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,008.06 : 789,371.22 = 317,358.64 : x
  2. Step 2: Convert to fraction form
    572,008.06/789,371.22 = 317,358.64/x
  3. Step 3: Cross multiply
    572,008.06x = 789,371.22 × 317,358.64
  4. Step 4: Simplify right side
    572,008.06x = 250,513,776,834.34
  5. Step 5: Solve for x
    x = 250,513,776,834.34/572,008.06
  6. Step 6: Final answer
    x = 437,954.98

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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.