Home / 1,127,115.80-1,555,479.42-617,839.64

Finding the Fourth Proportional to 1,127,115.80, 1,555,479.42 and 617,839.64

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Solution

The fourth proportional to 1,127,115.80, 1,555,479.42 and 617,839.64 is: 852,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,115.80 : 1,555,479.42 = 617,839.64 : x
  2. Step 2: Convert to fraction form
    1,127,115.80/1,555,479.42 = 617,839.64/x
  3. Step 3: Cross multiply
    1,127,115.80x = 1,555,479.42 × 617,839.64
  4. Step 4: Simplify right side
    1,127,115.80x = 961,036,844,880.21
  5. Step 5: Solve for x
    x = 961,036,844,880.21/1,127,115.80
  6. Step 6: Final answer
    x = 852,651.38

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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.