Home / 1,223,333.76-1,688,186.88-679,474.56

Finding the Fourth Proportional to 1,223,333.76, 1,688,186.88 and 679,474.56

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Solution

The fourth proportional to 1,223,333.76, 1,688,186.88 and 679,474.56 is: 937,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,333.76 : 1,688,186.88 = 679,474.56 : x
  2. Step 2: Convert to fraction form
    1,223,333.76/1,688,186.88 = 679,474.56/x
  3. Step 3: Cross multiply
    1,223,333.76x = 1,688,186.88 × 679,474.56
  4. Step 4: Simplify right side
    1,223,333.76x = 1,147,080,037,485.77
  5. Step 5: Solve for x
    x = 1,147,080,037,485.77/1,223,333.76
  6. Step 6: Final answer
    x = 937,667.28

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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.