Home / 1,230,195.50-1,697,670.86-686,331.42

Finding the Fourth Proportional to 1,230,195.50, 1,697,670.86 and 686,331.42

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Solution

The fourth proportional to 1,230,195.50, 1,697,670.86 and 686,331.42 is: 947,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,195.50 : 1,697,670.86 = 686,331.42 : x
  2. Step 2: Convert to fraction form
    1,230,195.50/1,697,670.86 = 686,331.42/x
  3. Step 3: Cross multiply
    1,230,195.50x = 1,697,670.86 × 686,331.42
  4. Step 4: Simplify right side
    1,230,195.50x = 1,165,164,852,036.42
  5. Step 5: Solve for x
    x = 1,165,164,852,036.42/1,230,195.50
  6. Step 6: Final answer
    x = 947,137.96

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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.