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Finding the Fourth Proportional to 612,687.36, 845,501.04 and 344,415.36

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Solution

The fourth proportional to 612,687.36, 845,501.04 and 344,415.36 is: 475,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,687.36 : 845,501.04 = 344,415.36 : x
  2. Step 2: Convert to fraction form
    612,687.36/845,501.04 = 344,415.36/x
  3. Step 3: Cross multiply
    612,687.36x = 845,501.04 × 344,415.36
  4. Step 4: Simplify right side
    612,687.36x = 291,203,545,071.97
  5. Step 5: Solve for x
    x = 291,203,545,071.97/612,687.36
  6. Step 6: Final answer
    x = 475,288.97

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1.5x scale

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.