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Finding the Fourth Proportional to 332,554.40, 498,491.40 and 163,815.20

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Solution

The fourth proportional to 332,554.40, 498,491.40 and 163,815.20 is: 245,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,554.40 : 498,491.40 = 163,815.20 : x
  2. Step 2: Convert to fraction form
    332,554.40/498,491.40 = 163,815.20/x
  3. Step 3: Cross multiply
    332,554.40x = 498,491.40 × 163,815.20
  4. Step 4: Simplify right side
    332,554.40x = 81,660,468,389.28
  5. Step 5: Solve for x
    x = 81,660,468,389.28/332,554.40
  6. Step 6: Final answer
    x = 245,555.22

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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.