Home / 943,386.30-1,415,079.45-628,458.30

Finding the Fourth Proportional to 943,386.30, 1,415,079.45 and 628,458.30

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Solution

The fourth proportional to 943,386.30, 1,415,079.45 and 628,458.30 is: 942,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,386.30 : 1,415,079.45 = 628,458.30 : x
  2. Step 2: Convert to fraction form
    943,386.30/1,415,079.45 = 628,458.30/x
  3. Step 3: Cross multiply
    943,386.30x = 1,415,079.45 × 628,458.30
  4. Step 4: Simplify right side
    943,386.30x = 889,318,425,511.94
  5. Step 5: Solve for x
    x = 889,318,425,511.94/943,386.30
  6. Step 6: Final answer
    x = 942,687.45

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Double scale
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Similar ratio
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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.