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Finding the Fourth Proportional to 452,420.12, 624,199.72 and 261,363.80

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Solution

The fourth proportional to 452,420.12, 624,199.72 and 261,363.80 is: 360,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,420.12 : 624,199.72 = 261,363.80 : x
  2. Step 2: Convert to fraction form
    452,420.12/624,199.72 = 261,363.80/x
  3. Step 3: Cross multiply
    452,420.12x = 624,199.72 × 261,363.80
  4. Step 4: Simplify right side
    452,420.12x = 163,143,210,778.14
  5. Step 5: Solve for x
    x = 163,143,210,778.14/452,420.12
  6. Step 6: Final answer
    x = 360,601.14

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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.