Home / 1,179,973.54-1,628,360.49-643,429.54

Finding the Fourth Proportional to 1,179,973.54, 1,628,360.49 and 643,429.54

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Solution

The fourth proportional to 1,179,973.54, 1,628,360.49 and 643,429.54 is: 887,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,973.54 : 1,628,360.49 = 643,429.54 : x
  2. Step 2: Convert to fraction form
    1,179,973.54/1,628,360.49 = 643,429.54/x
  3. Step 3: Cross multiply
    1,179,973.54x = 1,628,360.49 × 643,429.54
  4. Step 4: Simplify right side
    1,179,973.54x = 1,047,735,241,034.87
  5. Step 5: Solve for x
    x = 1,047,735,241,034.87/1,179,973.54
  6. Step 6: Final answer
    x = 887,931.13

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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.