Home / 621,246.51-931,890.42-171,929.79

Finding the Fourth Proportional to 621,246.51, 931,890.42 and 171,929.79

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Solution

The fourth proportional to 621,246.51, 931,890.42 and 171,929.79 is: 257,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,246.51 : 931,890.42 = 171,929.79 : x
  2. Step 2: Convert to fraction form
    621,246.51/931,890.42 = 171,929.79/x
  3. Step 3: Cross multiply
    621,246.51x = 931,890.42 × 171,929.79
  4. Step 4: Simplify right side
    621,246.51x = 160,219,724,213.61
  5. Step 5: Solve for x
    x = 160,219,724,213.61/621,246.51
  6. Step 6: Final answer
    x = 257,900.40

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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.