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Finding the Fourth Proportional to 1,001,433.75, 1,381,978.58 and 548,715.03

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Solution

The fourth proportional to 1,001,433.75, 1,381,978.58 and 548,715.03 is: 757,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,433.75 : 1,381,978.58 = 548,715.03 : x
  2. Step 2: Convert to fraction form
    1,001,433.75/1,381,978.58 = 548,715.03/x
  3. Step 3: Cross multiply
    1,001,433.75x = 1,381,978.58 × 548,715.03
  4. Step 4: Simplify right side
    1,001,433.75x = 758,312,415,240.48
  5. Step 5: Solve for x
    x = 758,312,415,240.48/1,001,433.75
  6. Step 6: Final answer
    x = 757,226.74

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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.