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Finding the Fourth Proportional to 383,146.46, 528,678.77 and 232,243.46

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Solution

The fourth proportional to 383,146.46, 528,678.77 and 232,243.46 is: 320,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,146.46 : 528,678.77 = 232,243.46 : x
  2. Step 2: Convert to fraction form
    383,146.46/528,678.77 = 232,243.46/x
  3. Step 3: Cross multiply
    383,146.46x = 528,678.77 × 232,243.46
  4. Step 4: Simplify right side
    383,146.46x = 122,782,182,968.73
  5. Step 5: Solve for x
    x = 122,782,182,968.73/383,146.46
  6. Step 6: Final answer
    x = 320,457.57

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Double scale
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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.