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Finding the Fourth Proportional to 553,697.80, 775,701.80 and 553,697.80

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Solution

The fourth proportional to 553,697.80, 775,701.80 and 553,697.80 is: 775,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,697.80 : 775,701.80 = 553,697.80 : x
  2. Step 2: Convert to fraction form
    553,697.80/775,701.80 = 553,697.80/x
  3. Step 3: Cross multiply
    553,697.80x = 775,701.80 × 553,697.80
  4. Step 4: Simplify right side
    553,697.80x = 429,504,380,116.04
  5. Step 5: Solve for x
    x = 429,504,380,116.04/553,697.80
  6. Step 6: Final answer
    x = 775,701.80

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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.