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Finding the Fourth Proportional to 368,430.30, 552,645.45 and 200,468.70

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Solution

The fourth proportional to 368,430.30, 552,645.45 and 200,468.70 is: 300,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,430.30 : 552,645.45 = 200,468.70 : x
  2. Step 2: Convert to fraction form
    368,430.30/552,645.45 = 200,468.70/x
  3. Step 3: Cross multiply
    368,430.30x = 552,645.45 × 200,468.70
  4. Step 4: Simplify right side
    368,430.30x = 110,788,114,922.42
  5. Step 5: Solve for x
    x = 110,788,114,922.42/368,430.30
  6. Step 6: Final answer
    x = 300,703.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.