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Finding the Fourth Proportional to 859,704.60, 1,289,816.10 and 460,536.60

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Solution

The fourth proportional to 859,704.60, 1,289,816.10 and 460,536.60 is: 690,943.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,704.60 : 1,289,816.10 = 460,536.60 : x
  2. Step 2: Convert to fraction form
    859,704.60/1,289,816.10 = 460,536.60/x
  3. Step 3: Cross multiply
    859,704.60x = 1,289,816.10 × 460,536.60
  4. Step 4: Simplify right side
    859,704.60x = 594,007,521,319.26
  5. Step 5: Solve for x
    x = 594,007,521,319.26/859,704.60
  6. Step 6: Final answer
    x = 690,943.75

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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.