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Finding the Fourth Proportional to 603,715.80, 903,605.40 and 603,715.80

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Solution

The fourth proportional to 603,715.80, 903,605.40 and 603,715.80 is: 903,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,715.80 : 903,605.40 = 603,715.80 : x
  2. Step 2: Convert to fraction form
    603,715.80/903,605.40 = 603,715.80/x
  3. Step 3: Cross multiply
    603,715.80x = 903,605.40 × 603,715.80
  4. Step 4: Simplify right side
    603,715.80x = 545,520,856,945.32
  5. Step 5: Solve for x
    x = 545,520,856,945.32/603,715.80
  6. Step 6: Final answer
    x = 903,605.40

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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.