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Finding the Fourth Proportional to 415,968.48, 623,574.72 and 216,054.72

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Solution

The fourth proportional to 415,968.48, 623,574.72 and 216,054.72 is: 323,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,968.48 : 623,574.72 = 216,054.72 : x
  2. Step 2: Convert to fraction form
    415,968.48/623,574.72 = 216,054.72/x
  3. Step 3: Cross multiply
    415,968.48x = 623,574.72 × 216,054.72
  4. Step 4: Simplify right side
    415,968.48x = 134,726,261,528.68
  5. Step 5: Solve for x
    x = 134,726,261,528.68/415,968.48
  6. Step 6: Final answer
    x = 323,885.75

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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.