Home / 1,673,123.42-2,308,908.57-909,175.16

Finding the Fourth Proportional to 1,673,123.42, 2,308,908.57 and 909,175.16

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Solution

The fourth proportional to 1,673,123.42, 2,308,908.57 and 909,175.16 is: 1,254,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673,123.42 : 2,308,908.57 = 909,175.16 : x
  2. Step 2: Convert to fraction form
    1,673,123.42/2,308,908.57 = 909,175.16/x
  3. Step 3: Cross multiply
    1,673,123.42x = 2,308,908.57 × 909,175.16
  4. Step 4: Simplify right side
    1,673,123.42x = 2,099,202,318,555.12
  5. Step 5: Solve for x
    x = 2,099,202,318,555.12/1,673,123.42
  6. Step 6: Final answer
    x = 1,254,660.77

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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.