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Finding the Fourth Proportional to 683,433, 943,139.40 and 377,503.92

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Solution

The fourth proportional to 683,433, 943,139.40 and 377,503.92 is: 520,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,433 : 943,139.40 = 377,503.92 : x
  2. Step 2: Convert to fraction form
    683,433/943,139.40 = 377,503.92/x
  3. Step 3: Cross multiply
    683,433x = 943,139.40 × 377,503.92
  4. Step 4: Simplify right side
    683,433x = 356,038,820,606.45
  5. Step 5: Solve for x
    x = 356,038,820,606.45/683,433
  6. Step 6: Final answer
    x = 520,956.44

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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.