Home / 1,640,740.70-2,264,222.61-905,695.42

Finding the Fourth Proportional to 1,640,740.70, 2,264,222.61 and 905,695.42

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Solution

The fourth proportional to 1,640,740.70, 2,264,222.61 and 905,695.42 is: 1,249,859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,740.70 : 2,264,222.61 = 905,695.42 : x
  2. Step 2: Convert to fraction form
    1,640,740.70/2,264,222.61 = 905,695.42/x
  3. Step 3: Cross multiply
    1,640,740.70x = 2,264,222.61 × 905,695.42
  4. Step 4: Simplify right side
    1,640,740.70x = 2,050,696,047,737.45
  5. Step 5: Solve for x
    x = 2,050,696,047,737.45/1,640,740.70
  6. Step 6: Final answer
    x = 1,249,859.92

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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.