Home / 1,186,007.56-1,636,683.50-642,131.93

Finding the Fourth Proportional to 1,186,007.56, 1,636,683.50 and 642,131.93

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Solution

The fourth proportional to 1,186,007.56, 1,636,683.50 and 642,131.93 is: 886,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,007.56 : 1,636,683.50 = 642,131.93 : x
  2. Step 2: Convert to fraction form
    1,186,007.56/1,636,683.50 = 642,131.93/x
  3. Step 3: Cross multiply
    1,186,007.56x = 1,636,683.50 × 642,131.93
  4. Step 4: Simplify right side
    1,186,007.56x = 1,050,966,740,351.19
  5. Step 5: Solve for x
    x = 1,050,966,740,351.19/1,186,007.56
  6. Step 6: Final answer
    x = 886,138.32

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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.