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Finding the Fourth Proportional to 875,603.72, 1,313,480.10 and 276,404.60

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Solution

The fourth proportional to 875,603.72, 1,313,480.10 and 276,404.60 is: 414,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,603.72 : 1,313,480.10 = 276,404.60 : x
  2. Step 2: Convert to fraction form
    875,603.72/1,313,480.10 = 276,404.60/x
  3. Step 3: Cross multiply
    875,603.72x = 1,313,480.10 × 276,404.60
  4. Step 4: Simplify right side
    875,603.72x = 363,051,941,648.46
  5. Step 5: Solve for x
    x = 363,051,941,648.46/875,603.72
  6. Step 6: Final answer
    x = 414,630.42

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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.