Home / 714,191.97-985,582.20-391,907.46

Finding the Fourth Proportional to 714,191.97, 985,582.20 and 391,907.46

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Solution

The fourth proportional to 714,191.97, 985,582.20 and 391,907.46 is: 540,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,191.97 : 985,582.20 = 391,907.46 : x
  2. Step 2: Convert to fraction form
    714,191.97/985,582.20 = 391,907.46/x
  3. Step 3: Cross multiply
    714,191.97x = 985,582.20 × 391,907.46
  4. Step 4: Simplify right side
    714,191.97x = 386,257,016,623.21
  5. Step 5: Solve for x
    x = 386,257,016,623.21/714,191.97
  6. Step 6: Final answer
    x = 540,830.80

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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.