Home / 621,206.40-931,809.60-284,246.40

Finding the Fourth Proportional to 621,206.40, 931,809.60 and 284,246.40

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Solution

The fourth proportional to 621,206.40, 931,809.60 and 284,246.40 is: 426,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,206.40 : 931,809.60 = 284,246.40 : x
  2. Step 2: Convert to fraction form
    621,206.40/931,809.60 = 284,246.40/x
  3. Step 3: Cross multiply
    621,206.40x = 931,809.60 × 284,246.40
  4. Step 4: Simplify right side
    621,206.40x = 264,863,524,285.44
  5. Step 5: Solve for x
    x = 264,863,524,285.44/621,206.40
  6. Step 6: Final answer
    x = 426,369.60

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Similar ratio
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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.