Home / 1,688,511.75-2,330,150.05-914,150.73

Finding the Fourth Proportional to 1,688,511.75, 2,330,150.05 and 914,150.73

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Solution

The fourth proportional to 1,688,511.75, 2,330,150.05 and 914,150.73 is: 1,261,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,511.75 : 2,330,150.05 = 914,150.73 : x
  2. Step 2: Convert to fraction form
    1,688,511.75/2,330,150.05 = 914,150.73/x
  3. Step 3: Cross multiply
    1,688,511.75x = 2,330,150.05 × 914,150.73
  4. Step 4: Simplify right side
    1,688,511.75x = 2,130,108,369,217.04
  5. Step 5: Solve for x
    x = 2,130,108,369,217.04/1,688,511.75
  6. Step 6: Final answer
    x = 1,261,530.08

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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.