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Finding the Fourth Proportional to 1,265,721.06, 1,746,695.06 and 692,761.23

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Solution

The fourth proportional to 1,265,721.06, 1,746,695.06 and 692,761.23 is: 956,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,721.06 : 1,746,695.06 = 692,761.23 : x
  2. Step 2: Convert to fraction form
    1,265,721.06/1,746,695.06 = 692,761.23/x
  3. Step 3: Cross multiply
    1,265,721.06x = 1,746,695.06 × 692,761.23
  4. Step 4: Simplify right side
    1,265,721.06x = 1,210,042,606,003.24
  5. Step 5: Solve for x
    x = 1,210,042,606,003.24/1,265,721.06
  6. Step 6: Final answer
    x = 956,010.49

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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.