Home / 691,899.50-954,325.95-449,730.38

Finding the Fourth Proportional to 691,899.50, 954,325.95 and 449,730.38

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Solution

The fourth proportional to 691,899.50, 954,325.95 and 449,730.38 is: 620,305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,899.50 : 954,325.95 = 449,730.38 : x
  2. Step 2: Convert to fraction form
    691,899.50/954,325.95 = 449,730.38/x
  3. Step 3: Cross multiply
    691,899.50x = 954,325.95 × 449,730.38
  4. Step 4: Simplify right side
    691,899.50x = 429,189,372,137.36
  5. Step 5: Solve for x
    x = 429,189,372,137.36/691,899.50
  6. Step 6: Final answer
    x = 620,305.94

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1.5x scale

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.