Home / 469,630.78-648,090.42-268,465.66

Finding the Fourth Proportional to 469,630.78, 648,090.42 and 268,465.66

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Solution

The fourth proportional to 469,630.78, 648,090.42 and 268,465.66 is: 370,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,630.78 : 648,090.42 = 268,465.66 : x
  2. Step 2: Convert to fraction form
    469,630.78/648,090.42 = 268,465.66/x
  3. Step 3: Cross multiply
    469,630.78x = 648,090.42 × 268,465.66
  4. Step 4: Simplify right side
    469,630.78x = 173,990,022,344.98
  5. Step 5: Solve for x
    x = 173,990,022,344.98/469,630.78
  6. Step 6: Final answer
    x = 370,482.58

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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.