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Finding the Fourth Proportional to 469,894.80, 704,378.88 and 300,935.28

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Solution

The fourth proportional to 469,894.80, 704,378.88 and 300,935.28 is: 451,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,894.80 : 704,378.88 = 300,935.28 : x
  2. Step 2: Convert to fraction form
    469,894.80/704,378.88 = 300,935.28/x
  3. Step 3: Cross multiply
    469,894.80x = 704,378.88 × 300,935.28
  4. Step 4: Simplify right side
    469,894.80x = 211,972,455,478.89
  5. Step 5: Solve for x
    x = 211,972,455,478.89/469,894.80
  6. Step 6: Final answer
    x = 451,106.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.