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Finding the Fourth Proportional to 303,532.70, 455,299.05 and 163,564.70

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Solution

The fourth proportional to 303,532.70, 455,299.05 and 163,564.70 is: 245,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,532.70 : 455,299.05 = 163,564.70 : x
  2. Step 2: Convert to fraction form
    303,532.70/455,299.05 = 163,564.70/x
  3. Step 3: Cross multiply
    303,532.70x = 455,299.05 × 163,564.70
  4. Step 4: Simplify right side
    303,532.70x = 74,470,852,523.54
  5. Step 5: Solve for x
    x = 74,470,852,523.54/303,532.70
  6. Step 6: Final answer
    x = 245,347.05

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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.