Home / 1,186,658.66-1,637,596.81-642,794.44

Finding the Fourth Proportional to 1,186,658.66, 1,637,596.81 and 642,794.44

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Solution

The fourth proportional to 1,186,658.66, 1,637,596.81 and 642,794.44 is: 887,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,658.66 : 1,637,596.81 = 642,794.44 : x
  2. Step 2: Convert to fraction form
    1,186,658.66/1,637,596.81 = 642,794.44/x
  3. Step 3: Cross multiply
    1,186,658.66x = 1,637,596.81 × 642,794.44
  4. Step 4: Simplify right side
    1,186,658.66x = 1,052,638,124,429.74
  5. Step 5: Solve for x
    x = 1,052,638,124,429.74/1,186,658.66
  6. Step 6: Final answer
    x = 887,060.58

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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.