Home / 1,688,510.75-2,330,148.67-914,149.73

Finding the Fourth Proportional to 1,688,510.75, 2,330,148.67 and 914,149.73

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Solution

The fourth proportional to 1,688,510.75, 2,330,148.67 and 914,149.73 is: 1,261,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,510.75 : 2,330,148.67 = 914,149.73 : x
  2. Step 2: Convert to fraction form
    1,688,510.75/2,330,148.67 = 914,149.73/x
  3. Step 3: Cross multiply
    1,688,510.75x = 2,330,148.67 × 914,149.73
  4. Step 4: Simplify right side
    1,688,510.75x = 2,130,104,781,080.36
  5. Step 5: Solve for x
    x = 2,130,104,781,080.36/1,688,510.75
  6. Step 6: Final answer
    x = 1,261,528.71

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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.