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Finding the Fourth Proportional to 479,441.81, 661,878.46 and 350,235.22

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Solution

The fourth proportional to 479,441.81, 661,878.46 and 350,235.22 is: 483,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,441.81 : 661,878.46 = 350,235.22 : x
  2. Step 2: Convert to fraction form
    479,441.81/661,878.46 = 350,235.22/x
  3. Step 3: Cross multiply
    479,441.81x = 661,878.46 × 350,235.22
  4. Step 4: Simplify right side
    479,441.81x = 231,813,146,300.19
  5. Step 5: Solve for x
    x = 231,813,146,300.19/479,441.81
  6. Step 6: Final answer
    x = 483,506.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.