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Finding the Fourth Proportional to 371,963.44, 513,298.74 and 210,833.32

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Solution

The fourth proportional to 371,963.44, 513,298.74 and 210,833.32 is: 290,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,963.44 : 513,298.74 = 210,833.32 : x
  2. Step 2: Convert to fraction form
    371,963.44/513,298.74 = 210,833.32/x
  3. Step 3: Cross multiply
    371,963.44x = 513,298.74 × 210,833.32
  4. Step 4: Simplify right side
    371,963.44x = 108,220,477,506.02
  5. Step 5: Solve for x
    x = 108,220,477,506.02/371,963.44
  6. Step 6: Final answer
    x = 290,943.86

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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.