Home / 654,222.80-981,334.20-402,280.40

Finding the Fourth Proportional to 654,222.80, 981,334.20 and 402,280.40

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Solution

The fourth proportional to 654,222.80, 981,334.20 and 402,280.40 is: 603,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,222.80 : 981,334.20 = 402,280.40 : x
  2. Step 2: Convert to fraction form
    654,222.80/981,334.20 = 402,280.40/x
  3. Step 3: Cross multiply
    654,222.80x = 981,334.20 × 402,280.40
  4. Step 4: Simplify right side
    654,222.80x = 394,771,514,509.68
  5. Step 5: Solve for x
    x = 394,771,514,509.68/654,222.80
  6. Step 6: Final answer
    x = 603,420.60

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Similar ratio
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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.