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Finding the Fourth Proportional to 867,640.79, 1,301,422.83 and 236,554.67

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Solution

The fourth proportional to 867,640.79, 1,301,422.83 and 236,554.67 is: 354,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,640.79 : 1,301,422.83 = 236,554.67 : x
  2. Step 2: Convert to fraction form
    867,640.79/1,301,422.83 = 236,554.67/x
  3. Step 3: Cross multiply
    867,640.79x = 1,301,422.83 × 236,554.67
  4. Step 4: Simplify right side
    867,640.79x = 307,857,641,574.00
  5. Step 5: Solve for x
    x = 307,857,641,574.00/867,640.79
  6. Step 6: Final answer
    x = 354,821.54

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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.