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Finding the Fourth Proportional to 537,100.40, 804,959.40 and 411,820.40

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Solution

The fourth proportional to 537,100.40, 804,959.40 and 411,820.40 is: 617,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,100.40 : 804,959.40 = 411,820.40 : x
  2. Step 2: Convert to fraction form
    537,100.40/804,959.40 = 411,820.40/x
  3. Step 3: Cross multiply
    537,100.40x = 804,959.40 × 411,820.40
  4. Step 4: Simplify right side
    537,100.40x = 331,498,702,091.76
  5. Step 5: Solve for x
    x = 331,498,702,091.76/537,100.40
  6. Step 6: Final answer
    x = 617,200.62

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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.