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Finding the Fourth Proportional to 472,172.56, 708,479.88 and 235,533.52

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Solution

The fourth proportional to 472,172.56, 708,479.88 and 235,533.52 is: 353,410.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,172.56 : 708,479.88 = 235,533.52 : x
  2. Step 2: Convert to fraction form
    472,172.56/708,479.88 = 235,533.52/x
  3. Step 3: Cross multiply
    472,172.56x = 708,479.88 × 235,533.52
  4. Step 4: Simplify right side
    472,172.56x = 166,870,759,985.58
  5. Step 5: Solve for x
    x = 166,870,759,985.58/472,172.56
  6. Step 6: Final answer
    x = 353,410.54

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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.