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Finding the Fourth Proportional to 325,554.40, 488,477.40 and 115,343.20

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Solution

The fourth proportional to 325,554.40, 488,477.40 and 115,343.20 is: 173,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,554.40 : 488,477.40 = 115,343.20 : x
  2. Step 2: Convert to fraction form
    325,554.40/488,477.40 = 115,343.20/x
  3. Step 3: Cross multiply
    325,554.40x = 488,477.40 × 115,343.20
  4. Step 4: Simplify right side
    325,554.40x = 56,342,546,443.68
  5. Step 5: Solve for x
    x = 56,342,546,443.68/325,554.40
  6. Step 6: Final answer
    x = 173,066.46

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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.