Home / 714,676.14-986,255.04-392,407.11

Finding the Fourth Proportional to 714,676.14, 986,255.04 and 392,407.11

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Solution

The fourth proportional to 714,676.14, 986,255.04 and 392,407.11 is: 541,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,676.14 : 986,255.04 = 392,407.11 : x
  2. Step 2: Convert to fraction form
    714,676.14/986,255.04 = 392,407.11/x
  3. Step 3: Cross multiply
    714,676.14x = 986,255.04 × 392,407.11
  4. Step 4: Simplify right side
    714,676.14x = 387,013,489,969.33
  5. Step 5: Solve for x
    x = 387,013,489,969.33/714,676.14
  6. Step 6: Final answer
    x = 541,522.89

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1.5x scale

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.