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Finding the Fourth Proportional to 624,808.84, 862,234.71 and 338,328.92

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Solution

The fourth proportional to 624,808.84, 862,234.71 and 338,328.92 is: 466,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,808.84 : 862,234.71 = 338,328.92 : x
  2. Step 2: Convert to fraction form
    624,808.84/862,234.71 = 338,328.92/x
  3. Step 3: Cross multiply
    624,808.84x = 862,234.71 × 338,328.92
  4. Step 4: Simplify right side
    624,808.84x = 291,718,934,257.60
  5. Step 5: Solve for x
    x = 291,718,934,257.60/624,808.84
  6. Step 6: Final answer
    x = 466,893.10

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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.