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Finding the Fourth Proportional to 474,152.82, 654,031.71 and 330,860.58

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Solution

The fourth proportional to 474,152.82, 654,031.71 and 330,860.58 is: 456,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,152.82 : 654,031.71 = 330,860.58 : x
  2. Step 2: Convert to fraction form
    474,152.82/654,031.71 = 330,860.58/x
  3. Step 3: Cross multiply
    474,152.82x = 654,031.71 × 330,860.58
  4. Step 4: Simplify right side
    474,152.82x = 216,393,310,908.99
  5. Step 5: Solve for x
    x = 216,393,310,908.99/474,152.82
  6. Step 6: Final answer
    x = 456,378.83

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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.