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Finding the Fourth Proportional to 468,303.21, 646,258.38 and 253,443.32

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Solution

The fourth proportional to 468,303.21, 646,258.38 and 253,443.32 is: 349,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,303.21 : 646,258.38 = 253,443.32 : x
  2. Step 2: Convert to fraction form
    468,303.21/646,258.38 = 253,443.32/x
  3. Step 3: Cross multiply
    468,303.21x = 646,258.38 × 253,443.32
  4. Step 4: Simplify right side
    468,303.21x = 163,789,866,173.73
  5. Step 5: Solve for x
    x = 163,789,866,173.73/468,303.21
  6. Step 6: Final answer
    x = 349,751.75

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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.