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Finding the Fourth Proportional to 474,228.32, 654,135.90 and 330,936.08

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Solution

The fourth proportional to 474,228.32, 654,135.90 and 330,936.08 is: 456,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,228.32 : 654,135.90 = 330,936.08 : x
  2. Step 2: Convert to fraction form
    474,228.32/654,135.90 = 330,936.08/x
  3. Step 3: Cross multiply
    474,228.32x = 654,135.90 × 330,936.08
  4. Step 4: Simplify right side
    474,228.32x = 216,477,170,533.27
  5. Step 5: Solve for x
    x = 216,477,170,533.27/474,228.32
  6. Step 6: Final answer
    x = 456,483.01

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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.