Home / 1,186,171.49-1,636,924.46-642,307.32

Finding the Fourth Proportional to 1,186,171.49, 1,636,924.46 and 642,307.32

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Solution

The fourth proportional to 1,186,171.49, 1,636,924.46 and 642,307.32 is: 886,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,171.49 : 1,636,924.46 = 642,307.32 : x
  2. Step 2: Convert to fraction form
    1,186,171.49/1,636,924.46 = 642,307.32/x
  3. Step 3: Cross multiply
    1,186,171.49x = 1,636,924.46 × 642,307.32
  4. Step 4: Simplify right side
    1,186,171.49x = 1,051,408,559,733.51
  5. Step 5: Solve for x
    x = 1,051,408,559,733.51/1,186,171.49
  6. Step 6: Final answer
    x = 886,388.32

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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.