Home / 1,185,964.43-1,636,611.07-642,095.80

Finding the Fourth Proportional to 1,185,964.43, 1,636,611.07 and 642,095.80

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Solution

The fourth proportional to 1,185,964.43, 1,636,611.07 and 642,095.80 is: 886,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,964.43 : 1,636,611.07 = 642,095.80 : x
  2. Step 2: Convert to fraction form
    1,185,964.43/1,636,611.07 = 642,095.80/x
  3. Step 3: Cross multiply
    1,185,964.43x = 1,636,611.07 × 642,095.80
  4. Step 4: Simplify right side
    1,185,964.43x = 1,050,861,094,280.51
  5. Step 5: Solve for x
    x = 1,050,861,094,280.51/1,185,964.43
  6. Step 6: Final answer
    x = 886,081.46

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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.