Home / 1,200,170.70-1,656,210.51-656,300.34

Finding the Fourth Proportional to 1,200,170.70, 1,656,210.51 and 656,300.34

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Solution

The fourth proportional to 1,200,170.70, 1,656,210.51 and 656,300.34 is: 905,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,170.70 : 1,656,210.51 = 656,300.34 : x
  2. Step 2: Convert to fraction form
    1,200,170.70/1,656,210.51 = 656,300.34/x
  3. Step 3: Cross multiply
    1,200,170.70x = 1,656,210.51 × 656,300.34
  4. Step 4: Simplify right side
    1,200,170.70x = 1,086,971,520,824.57
  5. Step 5: Solve for x
    x = 1,086,971,520,824.57/1,200,170.70
  6. Step 6: Final answer
    x = 905,680.77

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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.