Home / 1,296,016.60-1,943,150.10-688,905.40

Finding the Fourth Proportional to 1,296,016.60, 1,943,150.10 and 688,905.40

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Solution

The fourth proportional to 1,296,016.60, 1,943,150.10 and 688,905.40 is: 1,032,893.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,016.60 : 1,943,150.10 = 688,905.40 : x
  2. Step 2: Convert to fraction form
    1,296,016.60/1,943,150.10 = 688,905.40/x
  3. Step 3: Cross multiply
    1,296,016.60x = 1,943,150.10 × 688,905.40
  4. Step 4: Simplify right side
    1,296,016.60x = 1,338,646,596,900.54
  5. Step 5: Solve for x
    x = 1,338,646,596,900.54/1,296,016.60
  6. Step 6: Final answer
    x = 1,032,893.09

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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.