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Finding the Fourth Proportional to 1,333,874.28, 1,840,741.56 and 760,913.40

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Solution

The fourth proportional to 1,333,874.28, 1,840,741.56 and 760,913.40 is: 1,050,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,874.28 : 1,840,741.56 = 760,913.40 : x
  2. Step 2: Convert to fraction form
    1,333,874.28/1,840,741.56 = 760,913.40/x
  3. Step 3: Cross multiply
    1,333,874.28x = 1,840,741.56 × 760,913.40
  4. Step 4: Simplify right side
    1,333,874.28x = 1,400,644,918,940.90
  5. Step 5: Solve for x
    x = 1,400,644,918,940.90/1,333,874.28
  6. Step 6: Final answer
    x = 1,050,057.67

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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.