Home / 1,298,429.06-1,791,924.81-717,639.76

Finding the Fourth Proportional to 1,298,429.06, 1,791,924.81 and 717,639.76

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Solution

The fourth proportional to 1,298,429.06, 1,791,924.81 and 717,639.76 is: 990,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,429.06 : 1,791,924.81 = 717,639.76 : x
  2. Step 2: Convert to fraction form
    1,298,429.06/1,791,924.81 = 717,639.76/x
  3. Step 3: Cross multiply
    1,298,429.06x = 1,791,924.81 × 717,639.76
  4. Step 4: Simplify right side
    1,298,429.06x = 1,285,956,481,626.82
  5. Step 5: Solve for x
    x = 1,285,956,481,626.82/1,298,429.06
  6. Step 6: Final answer
    x = 990,394.10

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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.