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Finding the Fourth Proportional to 1,177,578, 1,625,057.64 and 641,034

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Solution

The fourth proportional to 1,177,578, 1,625,057.64 and 641,034 is: 884,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,578 : 1,625,057.64 = 641,034 : x
  2. Step 2: Convert to fraction form
    1,177,578/1,625,057.64 = 641,034/x
  3. Step 3: Cross multiply
    1,177,578x = 1,625,057.64 × 641,034
  4. Step 4: Simplify right side
    1,177,578x = 1,041,717,199,199.76
  5. Step 5: Solve for x
    x = 1,041,717,199,199.76/1,177,578
  6. Step 6: Final answer
    x = 884,626.92

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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.