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Finding the Fourth Proportional to 393,184.50, 589,776.75 and 130,528.50

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Solution

The fourth proportional to 393,184.50, 589,776.75 and 130,528.50 is: 195,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,184.50 : 589,776.75 = 130,528.50 : x
  2. Step 2: Convert to fraction form
    393,184.50/589,776.75 = 130,528.50/x
  3. Step 3: Cross multiply
    393,184.50x = 589,776.75 × 130,528.50
  4. Step 4: Simplify right side
    393,184.50x = 76,982,674,512.38
  5. Step 5: Solve for x
    x = 76,982,674,512.38/393,184.50
  6. Step 6: Final answer
    x = 195,792.75

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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.