Home / 858,930.63-1,286,433.11-409,966.64

Finding the Fourth Proportional to 858,930.63, 1,286,433.11 and 409,966.64

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Solution

The fourth proportional to 858,930.63, 1,286,433.11 and 409,966.64 is: 614,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,930.63 : 1,286,433.11 = 409,966.64 : x
  2. Step 2: Convert to fraction form
    858,930.63/1,286,433.11 = 409,966.64/x
  3. Step 3: Cross multiply
    858,930.63x = 1,286,433.11 × 409,966.64
  4. Step 4: Simplify right side
    858,930.63x = 527,394,656,475.37
  5. Step 5: Solve for x
    x = 527,394,656,475.37/858,930.63
  6. Step 6: Final answer
    x = 614,013.10

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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.