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Finding the Fourth Proportional to 303,920.40, 455,880.60 and 93,622.80

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Solution

The fourth proportional to 303,920.40, 455,880.60 and 93,622.80 is: 140,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,920.40 : 455,880.60 = 93,622.80 : x
  2. Step 2: Convert to fraction form
    303,920.40/455,880.60 = 93,622.80/x
  3. Step 3: Cross multiply
    303,920.40x = 455,880.60 × 93,622.80
  4. Step 4: Simplify right side
    303,920.40x = 42,680,818,237.68
  5. Step 5: Solve for x
    x = 42,680,818,237.68/303,920.40
  6. Step 6: Final answer
    x = 140,434.20

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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.