Home / 448,021.60-672,032.40-224,072.80

Finding the Fourth Proportional to 448,021.60, 672,032.40 and 224,072.80

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Solution

The fourth proportional to 448,021.60, 672,032.40 and 224,072.80 is: 336,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,021.60 : 672,032.40 = 224,072.80 : x
  2. Step 2: Convert to fraction form
    448,021.60/672,032.40 = 224,072.80/x
  3. Step 3: Cross multiply
    448,021.60x = 672,032.40 × 224,072.80
  4. Step 4: Simplify right side
    448,021.60x = 150,584,181,558.72
  5. Step 5: Solve for x
    x = 150,584,181,558.72/448,021.60
  6. Step 6: Final answer
    x = 336,109.20

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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.