Home / 1,221,441.80-1,685,599.80-677,613.20

Finding the Fourth Proportional to 1,221,441.80, 1,685,599.80 and 677,613.20

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Solution

The fourth proportional to 1,221,441.80, 1,685,599.80 and 677,613.20 is: 935,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,441.80 : 1,685,599.80 = 677,613.20 : x
  2. Step 2: Convert to fraction form
    1,221,441.80/1,685,599.80 = 677,613.20/x
  3. Step 3: Cross multiply
    1,221,441.80x = 1,685,599.80 × 677,613.20
  4. Step 4: Simplify right side
    1,221,441.80x = 1,142,184,674,397.36
  5. Step 5: Solve for x
    x = 1,142,184,674,397.36/1,221,441.80
  6. Step 6: Final answer
    x = 935,111.83

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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.