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Finding the Fourth Proportional to 572,346.05, 789,840.60 and 357,610.64

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Solution

The fourth proportional to 572,346.05, 789,840.60 and 357,610.64 is: 493,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,346.05 : 789,840.60 = 357,610.64 : x
  2. Step 2: Convert to fraction form
    572,346.05/789,840.60 = 357,610.64/x
  3. Step 3: Cross multiply
    572,346.05x = 789,840.60 × 357,610.64
  4. Step 4: Simplify right side
    572,346.05x = 282,455,402,463.98
  5. Step 5: Solve for x
    x = 282,455,402,463.98/572,346.05
  6. Step 6: Final answer
    x = 493,504.59

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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.