Home / 1,211,711.80-1,817,567.70-412,922.20

Finding the Fourth Proportional to 1,211,711.80, 1,817,567.70 and 412,922.20

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Solution

The fourth proportional to 1,211,711.80, 1,817,567.70 and 412,922.20 is: 619,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,711.80 : 1,817,567.70 = 412,922.20 : x
  2. Step 2: Convert to fraction form
    1,211,711.80/1,817,567.70 = 412,922.20/x
  3. Step 3: Cross multiply
    1,211,711.80x = 1,817,567.70 × 412,922.20
  4. Step 4: Simplify right side
    1,211,711.80x = 750,514,053,332.94
  5. Step 5: Solve for x
    x = 750,514,053,332.94/1,211,711.80
  6. Step 6: Final answer
    x = 619,383.30

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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.