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Finding the Fourth Proportional to 452,436.44, 624,205.98 and 289,188.43

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Solution

The fourth proportional to 452,436.44, 624,205.98 and 289,188.43 is: 398,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,436.44 : 624,205.98 = 289,188.43 : x
  2. Step 2: Convert to fraction form
    452,436.44/624,205.98 = 289,188.43/x
  3. Step 3: Cross multiply
    452,436.44x = 624,205.98 × 289,188.43
  4. Step 4: Simplify right side
    452,436.44x = 180,513,145,792.30
  5. Step 5: Solve for x
    x = 180,513,145,792.30/452,436.44
  6. Step 6: Final answer
    x = 398,980.13

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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.