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Finding the Fourth Proportional to 356,807.80, 492,417.54 and 235,736.68

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Solution

The fourth proportional to 356,807.80, 492,417.54 and 235,736.68 is: 325,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,807.80 : 492,417.54 = 235,736.68 : x
  2. Step 2: Convert to fraction form
    356,807.80/492,417.54 = 235,736.68/x
  3. Step 3: Cross multiply
    356,807.80x = 492,417.54 × 235,736.68
  4. Step 4: Simplify right side
    356,807.80x = 116,080,876,053.37
  5. Step 5: Solve for x
    x = 116,080,876,053.37/356,807.80
  6. Step 6: Final answer
    x = 325,331.67

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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.