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Finding the Fourth Proportional to 537,130.40, 805,004.40 and 411,850.40

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Solution

The fourth proportional to 537,130.40, 805,004.40 and 411,850.40 is: 617,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,130.40 : 805,004.40 = 411,850.40 : x
  2. Step 2: Convert to fraction form
    537,130.40/805,004.40 = 411,850.40/x
  3. Step 3: Cross multiply
    537,130.40x = 805,004.40 × 411,850.40
  4. Step 4: Simplify right side
    537,130.40x = 331,541,384,141.76
  5. Step 5: Solve for x
    x = 331,541,384,141.76/537,130.40
  6. Step 6: Final answer
    x = 617,245.62

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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.