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Finding the Fourth Proportional to 416,306.79, 624,461.81 and 100,763.19

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Solution

The fourth proportional to 416,306.79, 624,461.81 and 100,763.19 is: 151,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,306.79 : 624,461.81 = 100,763.19 : x
  2. Step 2: Convert to fraction form
    416,306.79/624,461.81 = 100,763.19/x
  3. Step 3: Cross multiply
    416,306.79x = 624,461.81 × 100,763.19
  4. Step 4: Simplify right side
    416,306.79x = 62,922,763,504.96
  5. Step 5: Solve for x
    x = 62,922,763,504.96/416,306.79
  6. Step 6: Final answer
    x = 151,145.18

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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.