Home / 1,186,188.80-1,636,968.03-676,938.56

Finding the Fourth Proportional to 1,186,188.80, 1,636,968.03 and 676,938.56

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Solution

The fourth proportional to 1,186,188.80, 1,636,968.03 and 676,938.56 is: 934,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,188.80 : 1,636,968.03 = 676,938.56 : x
  2. Step 2: Convert to fraction form
    1,186,188.80/1,636,968.03 = 676,938.56/x
  3. Step 3: Cross multiply
    1,186,188.80x = 1,636,968.03 × 676,938.56
  4. Step 4: Simplify right side
    1,186,188.80x = 1,108,126,780,994.24
  5. Step 5: Solve for x
    x = 1,108,126,780,994.24/1,186,188.80
  6. Step 6: Final answer
    x = 934,190.90

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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.