Home / 448,416.36-672,636.96-111,443.40

Finding the Fourth Proportional to 448,416.36, 672,636.96 and 111,443.40

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Solution

The fourth proportional to 448,416.36, 672,636.96 and 111,443.40 is: 167,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,416.36 : 672,636.96 = 111,443.40 : x
  2. Step 2: Convert to fraction form
    448,416.36/672,636.96 = 111,443.40/x
  3. Step 3: Cross multiply
    448,416.36x = 672,636.96 × 111,443.40
  4. Step 4: Simplify right side
    448,416.36x = 74,960,949,788.06
  5. Step 5: Solve for x
    x = 74,960,949,788.06/448,416.36
  6. Step 6: Final answer
    x = 167,168.19

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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.