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Finding the Fourth Proportional to 379,326.36, 523,506.58 and 207,270.48

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Solution

The fourth proportional to 379,326.36, 523,506.58 and 207,270.48 is: 286,053.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,326.36 : 523,506.58 = 207,270.48 : x
  2. Step 2: Convert to fraction form
    379,326.36/523,506.58 = 207,270.48/x
  3. Step 3: Cross multiply
    379,326.36x = 523,506.58 × 207,270.48
  4. Step 4: Simplify right side
    379,326.36x = 108,507,460,119.76
  5. Step 5: Solve for x
    x = 108,507,460,119.76/379,326.36
  6. Step 6: Final answer
    x = 286,053.04

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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.