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Finding the Fourth Proportional to 294,272.80, 441,409.20 and 189,210.40

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Solution

The fourth proportional to 294,272.80, 441,409.20 and 189,210.40 is: 283,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,272.80 : 441,409.20 = 189,210.40 : x
  2. Step 2: Convert to fraction form
    294,272.80/441,409.20 = 189,210.40/x
  3. Step 3: Cross multiply
    294,272.80x = 441,409.20 × 189,210.40
  4. Step 4: Simplify right side
    294,272.80x = 83,519,211,295.68
  5. Step 5: Solve for x
    x = 83,519,211,295.68/294,272.80
  6. Step 6: Final answer
    x = 283,815.60

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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.