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Finding the Fourth Proportional to 1,213,555, 1,674,706.62 and 677,011

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Solution

The fourth proportional to 1,213,555, 1,674,706.62 and 677,011 is: 934,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,555 : 1,674,706.62 = 677,011 : x
  2. Step 2: Convert to fraction form
    1,213,555/1,674,706.62 = 677,011/x
  3. Step 3: Cross multiply
    1,213,555x = 1,674,706.62 × 677,011
  4. Step 4: Simplify right side
    1,213,555x = 1,133,794,803,512.82
  5. Step 5: Solve for x
    x = 1,133,794,803,512.82/1,213,555
  6. Step 6: Final answer
    x = 934,275.58

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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.