Home / 627,516.21-865,979.10-341,036.33

Finding the Fourth Proportional to 627,516.21, 865,979.10 and 341,036.33

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Solution

The fourth proportional to 627,516.21, 865,979.10 and 341,036.33 is: 470,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,516.21 : 865,979.10 = 341,036.33 : x
  2. Step 2: Convert to fraction form
    627,516.21/865,979.10 = 341,036.33/x
  3. Step 3: Cross multiply
    627,516.21x = 865,979.10 × 341,036.33
  4. Step 4: Simplify right side
    627,516.21x = 295,330,329,790.81
  5. Step 5: Solve for x
    x = 295,330,329,790.81/627,516.21
  6. Step 6: Final answer
    x = 470,633.78

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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.