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Finding the Fourth Proportional to 674,684, 931,051.44 and 372,871.52

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Solution

The fourth proportional to 674,684, 931,051.44 and 372,871.52 is: 514,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,684 : 931,051.44 = 372,871.52 : x
  2. Step 2: Convert to fraction form
    674,684/931,051.44 = 372,871.52/x
  3. Step 3: Cross multiply
    674,684x = 931,051.44 × 372,871.52
  4. Step 4: Simplify right side
    674,684x = 347,162,565,630.99
  5. Step 5: Solve for x
    x = 347,162,565,630.99/674,684
  6. Step 6: Final answer
    x = 514,555.80

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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.