Home / 621,263.47-930,529.21-513,425.23

Finding the Fourth Proportional to 621,263.47, 930,529.21 and 513,425.23

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Solution

The fourth proportional to 621,263.47, 930,529.21 and 513,425.23 is: 769,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,263.47 : 930,529.21 = 513,425.23 : x
  2. Step 2: Convert to fraction form
    621,263.47/930,529.21 = 513,425.23/x
  3. Step 3: Cross multiply
    621,263.47x = 930,529.21 × 513,425.23
  4. Step 4: Simplify right side
    621,263.47x = 477,757,173,665.97
  5. Step 5: Solve for x
    x = 477,757,173,665.97/621,263.47
  6. Step 6: Final answer
    x = 769,008.96

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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.