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Finding the Fourth Proportional to 316,821.60, 474,357.60 and 246,837.60

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Solution

The fourth proportional to 316,821.60, 474,357.60 and 246,837.60 is: 369,574.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,821.60 : 474,357.60 = 246,837.60 : x
  2. Step 2: Convert to fraction form
    316,821.60/474,357.60 = 246,837.60/x
  3. Step 3: Cross multiply
    316,821.60x = 474,357.60 × 246,837.60
  4. Step 4: Simplify right side
    316,821.60x = 117,089,291,525.76
  5. Step 5: Solve for x
    x = 117,089,291,525.76/316,821.60
  6. Step 6: Final answer
    x = 369,574.84

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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.