Home / 693,428,723.28-956,878,529.40-396,029,911

Finding the Fourth Proportional to 693,428,723.28, 956,878,529.40 and 396,029,911

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Solution

The fourth proportional to 693,428,723.28, 956,878,529.40 and 396,029,911 is: 546,490,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,428,723.28 : 956,878,529.40 = 396,029,911 : x
  2. Step 2: Convert to fraction form
    693,428,723.28/956,878,529.40 = 396,029,911/x
  3. Step 3: Cross multiply
    693,428,723.28x = 956,878,529.40 × 396,029,911
  4. Step 4: Simplify right side
    693,428,723.28x = 378,952,518,836,092,864
  5. Step 5: Solve for x
    x = 378,952,518,836,092,864/693,428,723.28
  6. Step 6: Final answer
    x = 546,490,945.81

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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.