Home / 1,247,573.26-1,721,661.40-688,785.66

Finding the Fourth Proportional to 1,247,573.26, 1,721,661.40 and 688,785.66

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Solution

The fourth proportional to 1,247,573.26, 1,721,661.40 and 688,785.66 is: 950,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,573.26 : 1,721,661.40 = 688,785.66 : x
  2. Step 2: Convert to fraction form
    1,247,573.26/1,721,661.40 = 688,785.66/x
  3. Step 3: Cross multiply
    1,247,573.26x = 1,721,661.40 × 688,785.66
  4. Step 4: Simplify right side
    1,247,573.26x = 1,185,855,683,695.52
  5. Step 5: Solve for x
    x = 1,185,855,683,695.52/1,247,573.26
  6. Step 6: Final answer
    x = 950,529.90

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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.