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Finding the Fourth Proportional to 1,177,544, 1,625,010.80 and 641,000

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Solution

The fourth proportional to 1,177,544, 1,625,010.80 and 641,000 is: 884,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,544 : 1,625,010.80 = 641,000 : x
  2. Step 2: Convert to fraction form
    1,177,544/1,625,010.80 = 641,000/x
  3. Step 3: Cross multiply
    1,177,544x = 1,625,010.80 × 641,000
  4. Step 4: Simplify right side
    1,177,544x = 1,041,631,922,800
  5. Step 5: Solve for x
    x = 1,041,631,922,800/1,177,544
  6. Step 6: Final answer
    x = 884,580.04

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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.