Home / 627,197.51-865,527.80-340,719.64

Finding the Fourth Proportional to 627,197.51, 865,527.80 and 340,719.64

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Solution

The fourth proportional to 627,197.51, 865,527.80 and 340,719.64 is: 470,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,197.51 : 865,527.80 = 340,719.64 : x
  2. Step 2: Convert to fraction form
    627,197.51/865,527.80 = 340,719.64/x
  3. Step 3: Cross multiply
    627,197.51x = 865,527.80 × 340,719.64
  4. Step 4: Simplify right side
    627,197.51x = 294,902,316,558.57
  5. Step 5: Solve for x
    x = 294,902,316,558.57/627,197.51
  6. Step 6: Final answer
    x = 470,190.51

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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.