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Finding the Fourth Proportional to 618,468.44, 926,637.57 and 483,480

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Solution

The fourth proportional to 618,468.44, 926,637.57 and 483,480 is: 724,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,468.44 : 926,637.57 = 483,480 : x
  2. Step 2: Convert to fraction form
    618,468.44/926,637.57 = 483,480/x
  3. Step 3: Cross multiply
    618,468.44x = 926,637.57 × 483,480
  4. Step 4: Simplify right side
    618,468.44x = 448,010,732,343.60
  5. Step 5: Solve for x
    x = 448,010,732,343.60/618,468.44
  6. Step 6: Final answer
    x = 724,387.39

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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.