Home / 621,122.20-931,683.30-544,139.80

Finding the Fourth Proportional to 621,122.20, 931,683.30 and 544,139.80

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Solution

The fourth proportional to 621,122.20, 931,683.30 and 544,139.80 is: 816,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,122.20 : 931,683.30 = 544,139.80 : x
  2. Step 2: Convert to fraction form
    621,122.20/931,683.30 = 544,139.80/x
  3. Step 3: Cross multiply
    621,122.20x = 931,683.30 × 544,139.80
  4. Step 4: Simplify right side
    621,122.20x = 506,965,964,525.34
  5. Step 5: Solve for x
    x = 506,965,964,525.34/621,122.20
  6. Step 6: Final answer
    x = 816,209.70

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Double scale
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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.