Home / 627,212.96-865,554.64-340,733.24

Finding the Fourth Proportional to 627,212.96, 865,554.64 and 340,733.24

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Solution

The fourth proportional to 627,212.96, 865,554.64 and 340,733.24 is: 470,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,212.96 : 865,554.64 = 340,733.24 : x
  2. Step 2: Convert to fraction form
    627,212.96/865,554.64 = 340,733.24/x
  3. Step 3: Cross multiply
    627,212.96x = 865,554.64 × 340,733.24
  4. Step 4: Simplify right side
    627,212.96x = 294,923,236,884.23
  5. Step 5: Solve for x
    x = 294,923,236,884.23/627,212.96
  6. Step 6: Final answer
    x = 470,212.28

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1.5x scale

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.