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Finding the Fourth Proportional to 369,054.80, 553,233.90 and 200,326.40

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Solution

The fourth proportional to 369,054.80, 553,233.90 and 200,326.40 is: 300,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,054.80 : 553,233.90 = 200,326.40 : x
  2. Step 2: Convert to fraction form
    369,054.80/553,233.90 = 200,326.40/x
  3. Step 3: Cross multiply
    369,054.80x = 553,233.90 × 200,326.40
  4. Step 4: Simplify right side
    369,054.80x = 110,827,355,544.96
  5. Step 5: Solve for x
    x = 110,827,355,544.96/369,054.80
  6. Step 6: Final answer
    x = 300,300.54

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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.