Home / 621,271.98-930,541.95-513,433.76

Finding the Fourth Proportional to 621,271.98, 930,541.95 and 513,433.76

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Solution

The fourth proportional to 621,271.98, 930,541.95 and 513,433.76 is: 769,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,271.98 : 930,541.95 = 513,433.76 : x
  2. Step 2: Convert to fraction form
    621,271.98/930,541.95 = 513,433.76/x
  3. Step 3: Cross multiply
    621,271.98x = 930,541.95 × 513,433.76
  4. Step 4: Simplify right side
    621,271.98x = 477,771,647,573.52
  5. Step 5: Solve for x
    x = 477,771,647,573.52/621,271.98
  6. Step 6: Final answer
    x = 769,021.72

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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.