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Finding the Fourth Proportional to 893,080.40, 1,338,065.40 and 768,664.40

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Solution

The fourth proportional to 893,080.40, 1,338,065.40 and 768,664.40 is: 1,151,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,080.40 : 1,338,065.40 = 768,664.40 : x
  2. Step 2: Convert to fraction form
    893,080.40/1,338,065.40 = 768,664.40/x
  3. Step 3: Cross multiply
    893,080.40x = 1,338,065.40 × 768,664.40
  4. Step 4: Simplify right side
    893,080.40x = 1,028,523,237,851.76
  5. Step 5: Solve for x
    x = 1,028,523,237,851.76/893,080.40
  6. Step 6: Final answer
    x = 1,151,658.06

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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.