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Finding the Fourth Proportional to 537,101.40, 804,960.90 and 411,821.40

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Solution

The fourth proportional to 537,101.40, 804,960.90 and 411,821.40 is: 617,202.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,101.40 : 804,960.90 = 411,821.40 : x
  2. Step 2: Convert to fraction form
    537,101.40/804,960.90 = 411,821.40/x
  3. Step 3: Cross multiply
    537,101.40x = 804,960.90 × 411,821.40
  4. Step 4: Simplify right side
    537,101.40x = 331,500,124,783.26
  5. Step 5: Solve for x
    x = 331,500,124,783.26/537,101.40
  6. Step 6: Final answer
    x = 617,202.12

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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.