Home / 627,076.53-865,368.09-340,601.40

Finding the Fourth Proportional to 627,076.53, 865,368.09 and 340,601.40

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Solution

The fourth proportional to 627,076.53, 865,368.09 and 340,601.40 is: 470,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,076.53 : 865,368.09 = 340,601.40 : x
  2. Step 2: Convert to fraction form
    627,076.53/865,368.09 = 340,601.40/x
  3. Step 3: Cross multiply
    627,076.53x = 865,368.09 × 340,601.40
  4. Step 4: Simplify right side
    627,076.53x = 294,745,582,969.33
  5. Step 5: Solve for x
    x = 294,745,582,969.33/627,076.53
  6. Step 6: Final answer
    x = 470,031.28

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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.