Home / 512,331,299.28-707,016,177.72-277,381,895.76

Finding the Fourth Proportional to 512,331,299.28, 707,016,177.72 and 277,381,895.76

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Solution

The fourth proportional to 512,331,299.28, 707,016,177.72 and 277,381,895.76 is: 382,786,466.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,331,299.28 : 707,016,177.72 = 277,381,895.76 : x
  2. Step 2: Convert to fraction form
    512,331,299.28/707,016,177.72 = 277,381,895.76/x
  3. Step 3: Cross multiply
    512,331,299.28x = 707,016,177.72 × 277,381,895.76
  4. Step 4: Simplify right side
    512,331,299.28x = 196,113,487,708,962,688
  5. Step 5: Solve for x
    x = 196,113,487,708,962,688/512,331,299.28
  6. Step 6: Final answer
    x = 382,786,466.46

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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.