Home / 1,186,994.76-1,638,121.98-670,735.50

Finding the Fourth Proportional to 1,186,994.76, 1,638,121.98 and 670,735.50

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Solution

The fourth proportional to 1,186,994.76, 1,638,121.98 and 670,735.50 is: 925,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,994.76 : 1,638,121.98 = 670,735.50 : x
  2. Step 2: Convert to fraction form
    1,186,994.76/1,638,121.98 = 670,735.50/x
  3. Step 3: Cross multiply
    1,186,994.76x = 1,638,121.98 × 670,735.50
  4. Step 4: Simplify right side
    1,186,994.76x = 1,098,746,565,316.29
  5. Step 5: Solve for x
    x = 1,098,746,565,316.29/1,186,994.76
  6. Step 6: Final answer
    x = 925,654.10

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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.