Home / 621,221.97-931,877.52-165,810.81

Finding the Fourth Proportional to 621,221.97, 931,877.52 and 165,810.81

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Solution

The fourth proportional to 621,221.97, 931,877.52 and 165,810.81 is: 248,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,221.97 : 931,877.52 = 165,810.81 : x
  2. Step 2: Convert to fraction form
    621,221.97/931,877.52 = 165,810.81/x
  3. Step 3: Cross multiply
    621,221.97x = 931,877.52 × 165,810.81
  4. Step 4: Simplify right side
    621,221.97x = 154,515,366,411.99
  5. Step 5: Solve for x
    x = 154,515,366,411.99/621,221.97
  6. Step 6: Final answer
    x = 248,728.11

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1.5x scale

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.