Home / 714,511.03-986,021.34-392,226.61

Finding the Fourth Proportional to 714,511.03, 986,021.34 and 392,226.61

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Solution

The fourth proportional to 714,511.03, 986,021.34 and 392,226.61 is: 541,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,511.03 : 986,021.34 = 392,226.61 : x
  2. Step 2: Convert to fraction form
    714,511.03/986,021.34 = 392,226.61/x
  3. Step 3: Cross multiply
    714,511.03x = 986,021.34 × 392,226.61
  4. Step 4: Simplify right side
    714,511.03x = 386,743,807,575.86
  5. Step 5: Solve for x
    x = 386,743,807,575.86/714,511.03
  6. Step 6: Final answer
    x = 541,270.59

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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.