Home / 1,216,785.42-1,678,656.48-700,415.76

Finding the Fourth Proportional to 1,216,785.42, 1,678,656.48 and 700,415.76

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Solution

The fourth proportional to 1,216,785.42, 1,678,656.48 and 700,415.76 is: 966,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,785.42 : 1,678,656.48 = 700,415.76 : x
  2. Step 2: Convert to fraction form
    1,216,785.42/1,678,656.48 = 700,415.76/x
  3. Step 3: Cross multiply
    1,216,785.42x = 1,678,656.48 × 700,415.76
  4. Step 4: Simplify right side
    1,216,785.42x = 1,175,757,454,218.12
  5. Step 5: Solve for x
    x = 1,175,757,454,218.12/1,216,785.42
  6. Step 6: Final answer
    x = 966,281.68

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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.