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Finding the Fourth Proportional to 371,521.53, 512,856.65 and 250,826.28

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Solution

The fourth proportional to 371,521.53, 512,856.65 and 250,826.28 is: 346,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,521.53 : 512,856.65 = 250,826.28 : x
  2. Step 2: Convert to fraction form
    371,521.53/512,856.65 = 250,826.28/x
  3. Step 3: Cross multiply
    371,521.53x = 512,856.65 × 250,826.28
  4. Step 4: Simplify right side
    371,521.53x = 128,637,924,438.63
  5. Step 5: Solve for x
    x = 128,637,924,438.63/371,521.53
  6. Step 6: Final answer
    x = 346,246.22

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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.