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Finding the Fourth Proportional to 618,443.10, 926,599.54 and 483,454.57

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Solution

The fourth proportional to 618,443.10, 926,599.54 and 483,454.57 is: 724,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,443.10 : 926,599.54 = 483,454.57 : x
  2. Step 2: Convert to fraction form
    618,443.10/926,599.54 = 483,454.57/x
  3. Step 3: Cross multiply
    618,443.10x = 926,599.54 × 483,454.57
  4. Step 4: Simplify right side
    618,443.10x = 447,968,782,172.90
  5. Step 5: Solve for x
    x = 447,968,782,172.90/618,443.10
  6. Step 6: Final answer
    x = 724,349.23

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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.