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Finding the Fourth Proportional to 468,291.34, 646,243.89 and 253,431.35

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Solution

The fourth proportional to 468,291.34, 646,243.89 and 253,431.35 is: 349,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,291.34 : 646,243.89 = 253,431.35 : x
  2. Step 2: Convert to fraction form
    468,291.34/646,243.89 = 253,431.35/x
  3. Step 3: Cross multiply
    468,291.34x = 646,243.89 × 253,431.35
  4. Step 4: Simplify right side
    468,291.34x = 163,778,458,240.73
  5. Step 5: Solve for x
    x = 163,778,458,240.73/468,291.34
  6. Step 6: Final answer
    x = 349,736.26

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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.