Home / 1,223,056.64-1,687,742.88-679,159.28

Finding the Fourth Proportional to 1,223,056.64, 1,687,742.88 and 679,159.28

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Solution

The fourth proportional to 1,223,056.64, 1,687,742.88 and 679,159.28 is: 937,198.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,056.64 : 1,687,742.88 = 679,159.28 : x
  2. Step 2: Convert to fraction form
    1,223,056.64/1,687,742.88 = 679,159.28/x
  3. Step 3: Cross multiply
    1,223,056.64x = 1,687,742.88 × 679,159.28
  4. Step 4: Simplify right side
    1,223,056.64x = 1,146,246,239,205.93
  5. Step 5: Solve for x
    x = 1,146,246,239,205.93/1,223,056.64
  6. Step 6: Final answer
    x = 937,198.00

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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.