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Finding the Fourth Proportional to 567,640.37, 783,457.21 and 326,088.65

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Solution

The fourth proportional to 567,640.37, 783,457.21 and 326,088.65 is: 450,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,640.37 : 783,457.21 = 326,088.65 : x
  2. Step 2: Convert to fraction form
    567,640.37/783,457.21 = 326,088.65/x
  3. Step 3: Cross multiply
    567,640.37x = 783,457.21 × 326,088.65
  4. Step 4: Simplify right side
    567,640.37x = 255,476,506,307.92
  5. Step 5: Solve for x
    x = 255,476,506,307.92/567,640.37
  6. Step 6: Final answer
    x = 450,067.54

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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.