Home / 1,208,041.68-1,667,011.68-664,163.40

Finding the Fourth Proportional to 1,208,041.68, 1,667,011.68 and 664,163.40

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Solution

The fourth proportional to 1,208,041.68, 1,667,011.68 and 664,163.40 is: 916,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,041.68 : 1,667,011.68 = 664,163.40 : x
  2. Step 2: Convert to fraction form
    1,208,041.68/1,667,011.68 = 664,163.40/x
  3. Step 3: Cross multiply
    1,208,041.68x = 1,667,011.68 × 664,163.40
  4. Step 4: Simplify right side
    1,208,041.68x = 1,107,168,145,228.51
  5. Step 5: Solve for x
    x = 1,107,168,145,228.51/1,208,041.68
  6. Step 6: Final answer
    x = 916,498.30

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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.