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Finding the Fourth Proportional to 484,692.92, 668,440.76 and 303,421.35

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Solution

The fourth proportional to 484,692.92, 668,440.76 and 303,421.35 is: 418,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,692.92 : 668,440.76 = 303,421.35 : x
  2. Step 2: Convert to fraction form
    484,692.92/668,440.76 = 303,421.35/x
  3. Step 3: Cross multiply
    484,692.92x = 668,440.76 × 303,421.35
  4. Step 4: Simplify right side
    484,692.92x = 202,819,196,277.12
  5. Step 5: Solve for x
    x = 202,819,196,277.12/484,692.92
  6. Step 6: Final answer
    x = 418,448.86

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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.