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Finding the Fourth Proportional to 557,188.86, 768,899.07 and 302,534.22

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Solution

The fourth proportional to 557,188.86, 768,899.07 and 302,534.22 is: 417,485.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,188.86 : 768,899.07 = 302,534.22 : x
  2. Step 2: Convert to fraction form
    557,188.86/768,899.07 = 302,534.22/x
  3. Step 3: Cross multiply
    557,188.86x = 768,899.07 × 302,534.22
  4. Step 4: Simplify right side
    557,188.86x = 232,618,280,401.18
  5. Step 5: Solve for x
    x = 232,618,280,401.18/557,188.86
  6. Step 6: Final answer
    x = 417,485.52

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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.