Home / 640,594.83-883,986.18-354,096.48

Finding the Fourth Proportional to 640,594.83, 883,986.18 and 354,096.48

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Solution

The fourth proportional to 640,594.83, 883,986.18 and 354,096.48 is: 488,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,594.83 : 883,986.18 = 354,096.48 : x
  2. Step 2: Convert to fraction form
    640,594.83/883,986.18 = 354,096.48/x
  3. Step 3: Cross multiply
    640,594.83x = 883,986.18 × 354,096.48
  4. Step 4: Simplify right side
    640,594.83x = 313,016,394,706.65
  5. Step 5: Solve for x
    x = 313,016,394,706.65/640,594.83
  6. Step 6: Final answer
    x = 488,633.97

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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.