Home / 513,890.11-770,643.65-176,836.51

Finding the Fourth Proportional to 513,890.11, 770,643.65 and 176,836.51

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Solution

The fourth proportional to 513,890.11, 770,643.65 and 176,836.51 is: 265,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,890.11 : 770,643.65 = 176,836.51 : x
  2. Step 2: Convert to fraction form
    513,890.11/770,643.65 = 176,836.51/x
  3. Step 3: Cross multiply
    513,890.11x = 770,643.65 × 176,836.51
  4. Step 4: Simplify right side
    513,890.11x = 136,277,932,635.48
  5. Step 5: Solve for x
    x = 136,277,932,635.48/513,890.11
  6. Step 6: Final answer
    x = 265,188.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.