Home / 1,286,644.40-1,929,971.56-538,165.36

Finding the Fourth Proportional to 1,286,644.40, 1,929,971.56 and 538,165.36

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Solution

The fourth proportional to 1,286,644.40, 1,929,971.56 and 538,165.36 is: 807,250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,644.40 : 1,929,971.56 = 538,165.36 : x
  2. Step 2: Convert to fraction form
    1,286,644.40/1,929,971.56 = 538,165.36/x
  3. Step 3: Cross multiply
    1,286,644.40x = 1,929,971.56 × 538,165.36
  4. Step 4: Simplify right side
    1,286,644.40x = 1,038,643,839,377.16
  5. Step 5: Solve for x
    x = 1,038,643,839,377.16/1,286,644.40
  6. Step 6: Final answer
    x = 807,250.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.