Home / 873,410.26-1,205,329.72-491,450.62

Finding the Fourth Proportional to 873,410.26, 1,205,329.72 and 491,450.62

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Solution

The fourth proportional to 873,410.26, 1,205,329.72 and 491,450.62 is: 678,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,410.26 : 1,205,329.72 = 491,450.62 : x
  2. Step 2: Convert to fraction form
    873,410.26/1,205,329.72 = 491,450.62/x
  3. Step 3: Cross multiply
    873,410.26x = 1,205,329.72 × 491,450.62
  4. Step 4: Simplify right side
    873,410.26x = 592,360,038,198.43
  5. Step 5: Solve for x
    x = 592,360,038,198.43/873,410.26
  6. Step 6: Final answer
    x = 678,215.11

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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.