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Finding the Fourth Proportional to 368,864.94, 509,269.06 and 301,043.94

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Solution

The fourth proportional to 368,864.94, 509,269.06 and 301,043.94 is: 415,632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,864.94 : 509,269.06 = 301,043.94 : x
  2. Step 2: Convert to fraction form
    368,864.94/509,269.06 = 301,043.94/x
  3. Step 3: Cross multiply
    368,864.94x = 509,269.06 × 301,043.94
  4. Step 4: Simplify right side
    368,864.94x = 153,312,364,342.50
  5. Step 5: Solve for x
    x = 153,312,364,342.50/368,864.94
  6. Step 6: Final answer
    x = 415,632.79

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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.