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Finding the Fourth Proportional to 451,647.02, 623,271.90 and 260,660.42

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Solution

The fourth proportional to 451,647.02, 623,271.90 and 260,660.42 is: 359,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,647.02 : 623,271.90 = 260,660.42 : x
  2. Step 2: Convert to fraction form
    451,647.02/623,271.90 = 260,660.42/x
  3. Step 3: Cross multiply
    451,647.02x = 623,271.90 × 260,660.42
  4. Step 4: Simplify right side
    451,647.02x = 162,462,315,228.20
  5. Step 5: Solve for x
    x = 162,462,315,228.20/451,647.02
  6. Step 6: Final answer
    x = 359,710.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.