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Finding the Fourth Proportional to 624,692.84, 862,074.90 and 338,212.88

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Solution

The fourth proportional to 624,692.84, 862,074.90 and 338,212.88 is: 466,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,692.84 : 862,074.90 = 338,212.88 : x
  2. Step 2: Convert to fraction form
    624,692.84/862,074.90 = 338,212.88/x
  3. Step 3: Cross multiply
    624,692.84x = 862,074.90 × 338,212.88
  4. Step 4: Simplify right side
    624,692.84x = 291,564,834,704.71
  5. Step 5: Solve for x
    x = 291,564,834,704.71/624,692.84
  6. Step 6: Final answer
    x = 466,733.11

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1.5x scale

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.