Home / 1,186,053.90-1,636,756.92-642,196.14

Finding the Fourth Proportional to 1,186,053.90, 1,636,756.92 and 642,196.14

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Solution

The fourth proportional to 1,186,053.90, 1,636,756.92 and 642,196.14 is: 886,232.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,053.90 : 1,636,756.92 = 642,196.14 : x
  2. Step 2: Convert to fraction form
    1,186,053.90/1,636,756.92 = 642,196.14/x
  3. Step 3: Cross multiply
    1,186,053.90x = 1,636,756.92 × 642,196.14
  4. Step 4: Simplify right side
    1,186,053.90x = 1,051,118,976,142.29
  5. Step 5: Solve for x
    x = 1,051,118,976,142.29/1,186,053.90
  6. Step 6: Final answer
    x = 886,232.05

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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.