Home / 1,111,528.17-1,667,390.67-312,816.63

Finding the Fourth Proportional to 1,111,528.17, 1,667,390.67 and 312,816.63

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Solution

The fourth proportional to 1,111,528.17, 1,667,390.67 and 312,816.63 is: 469,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,528.17 : 1,667,390.67 = 312,816.63 : x
  2. Step 2: Convert to fraction form
    1,111,528.17/1,667,390.67 = 312,816.63/x
  3. Step 3: Cross multiply
    1,111,528.17x = 1,667,390.67 × 312,816.63
  4. Step 4: Simplify right side
    1,111,528.17x = 521,587,536,535.56
  5. Step 5: Solve for x
    x = 521,587,536,535.56/1,111,528.17
  6. Step 6: Final answer
    x = 469,252.65

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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.