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Finding the Fourth Proportional to 950,503.59, 1,311,694.69 and 520,800.03

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Solution

The fourth proportional to 950,503.59, 1,311,694.69 and 520,800.03 is: 718,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,503.59 : 1,311,694.69 = 520,800.03 : x
  2. Step 2: Convert to fraction form
    950,503.59/1,311,694.69 = 520,800.03/x
  3. Step 3: Cross multiply
    950,503.59x = 1,311,694.69 × 520,800.03
  4. Step 4: Simplify right side
    950,503.59x = 683,130,633,902.84
  5. Step 5: Solve for x
    x = 683,130,633,902.84/950,503.59
  6. Step 6: Final answer
    x = 718,703.90

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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.