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Finding the Fourth Proportional to 368,420.70, 552,631.05 and 368,420.70

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Solution

The fourth proportional to 368,420.70, 552,631.05 and 368,420.70 is: 552,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,420.70 : 552,631.05 = 368,420.70 : x
  2. Step 2: Convert to fraction form
    368,420.70/552,631.05 = 368,420.70/x
  3. Step 3: Cross multiply
    368,420.70x = 552,631.05 × 368,420.70
  4. Step 4: Simplify right side
    368,420.70x = 203,600,718,282.74
  5. Step 5: Solve for x
    x = 203,600,718,282.74/368,420.70
  6. Step 6: Final answer
    x = 552,631.05

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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.