Home / 1,230,199.66-1,697,676.59-686,335.53

Finding the Fourth Proportional to 1,230,199.66, 1,697,676.59 and 686,335.53

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Solution

The fourth proportional to 1,230,199.66, 1,697,676.59 and 686,335.53 is: 947,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,199.66 : 1,697,676.59 = 686,335.53 : x
  2. Step 2: Convert to fraction form
    1,230,199.66/1,697,676.59 = 686,335.53/x
  3. Step 3: Cross multiply
    1,230,199.66x = 1,697,676.59 × 686,335.53
  4. Step 4: Simplify right side
    1,230,199.66x = 1,165,175,763,882.08
  5. Step 5: Solve for x
    x = 1,165,175,763,882.08/1,230,199.66
  6. Step 6: Final answer
    x = 947,143.63

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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.