Home / 823,784.60-1,235,438.33-247,384.65

Finding the Fourth Proportional to 823,784.60, 1,235,438.33 and 247,384.65

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Solution

The fourth proportional to 823,784.60, 1,235,438.33 and 247,384.65 is: 371,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,784.60 : 1,235,438.33 = 247,384.65 : x
  2. Step 2: Convert to fraction form
    823,784.60/1,235,438.33 = 247,384.65/x
  3. Step 3: Cross multiply
    823,784.60x = 1,235,438.33 × 247,384.65
  4. Step 4: Simplify right side
    823,784.60x = 305,628,477,935.94
  5. Step 5: Solve for x
    x = 305,628,477,935.94/823,784.60
  6. Step 6: Final answer
    x = 371,005.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.