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Finding the Fourth Proportional to 282,568.40, 423,852.60 and 72,222.80

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Solution

The fourth proportional to 282,568.40, 423,852.60 and 72,222.80 is: 108,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,568.40 : 423,852.60 = 72,222.80 : x
  2. Step 2: Convert to fraction form
    282,568.40/423,852.60 = 72,222.80/x
  3. Step 3: Cross multiply
    282,568.40x = 423,852.60 × 72,222.80
  4. Step 4: Simplify right side
    282,568.40x = 30,611,821,559.28
  5. Step 5: Solve for x
    x = 30,611,821,559.28/282,568.40
  6. Step 6: Final answer
    x = 108,334.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.