Home / 705,659,758.11-973,811,273.54-392,387,246.04

Finding the Fourth Proportional to 705,659,758.11, 973,811,273.54 and 392,387,246.04

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Solution

The fourth proportional to 705,659,758.11, 973,811,273.54 and 392,387,246.04 is: 541,494,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,659,758.11 : 973,811,273.54 = 392,387,246.04 : x
  2. Step 2: Convert to fraction form
    705,659,758.11/973,811,273.54 = 392,387,246.04/x
  3. Step 3: Cross multiply
    705,659,758.11x = 973,811,273.54 × 392,387,246.04
  4. Step 4: Simplify right side
    705,659,758.11x = 382,111,123,783,177,664
  5. Step 5: Solve for x
    x = 382,111,123,783,177,664/705,659,758.11
  6. Step 6: Final answer
    x = 541,494,848.46

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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.