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Finding the Fourth Proportional to 442,894.45, 618,652.55 and 442,894.45

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Solution

The fourth proportional to 442,894.45, 618,652.55 and 442,894.45 is: 618,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,894.45 : 618,652.55 = 442,894.45 : x
  2. Step 2: Convert to fraction form
    442,894.45/618,652.55 = 442,894.45/x
  3. Step 3: Cross multiply
    442,894.45x = 618,652.55 × 442,894.45
  4. Step 4: Simplify right side
    442,894.45x = 273,997,780,873.35
  5. Step 5: Solve for x
    x = 273,997,780,873.35/442,894.45
  6. Step 6: Final answer
    x = 618,652.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.