Home / 1,186,140.70-1,636,991.40-676,919.62

Finding the Fourth Proportional to 1,186,140.70, 1,636,991.40 and 676,919.62

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Solution

The fourth proportional to 1,186,140.70, 1,636,991.40 and 676,919.62 is: 934,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,140.70 : 1,636,991.40 = 676,919.62 : x
  2. Step 2: Convert to fraction form
    1,186,140.70/1,636,991.40 = 676,919.62/x
  3. Step 3: Cross multiply
    1,186,140.70x = 1,636,991.40 × 676,919.62
  4. Step 4: Simplify right side
    1,186,140.70x = 1,108,111,596,431.27
  5. Step 5: Solve for x
    x = 1,108,111,596,431.27/1,186,140.70
  6. Step 6: Final answer
    x = 934,215.98

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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.