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Finding the Fourth Proportional to 395,870.60, 546,291.06 and 214,574.60

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Solution

The fourth proportional to 395,870.60, 546,291.06 and 214,574.60 is: 296,107.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,870.60 : 546,291.06 = 214,574.60 : x
  2. Step 2: Convert to fraction form
    395,870.60/546,291.06 = 214,574.60/x
  3. Step 3: Cross multiply
    395,870.60x = 546,291.06 × 214,574.60
  4. Step 4: Simplify right side
    395,870.60x = 117,220,185,683.08
  5. Step 5: Solve for x
    x = 117,220,185,683.08/395,870.60
  6. Step 6: Final answer
    x = 296,107.33

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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.