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Finding the Fourth Proportional to 572,351.06, 789,847.50 and 357,615.64

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Solution

The fourth proportional to 572,351.06, 789,847.50 and 357,615.64 is: 493,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,351.06 : 789,847.50 = 357,615.64 : x
  2. Step 2: Convert to fraction form
    572,351.06/789,847.50 = 357,615.64/x
  3. Step 3: Cross multiply
    572,351.06x = 789,847.50 × 357,615.64
  4. Step 4: Simplify right side
    572,351.06x = 282,461,819,214.90
  5. Step 5: Solve for x
    x = 282,461,819,214.90/572,351.06
  6. Step 6: Final answer
    x = 493,511.48

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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.