Home / 621,870.26-931,310.56-354,821.16

Finding the Fourth Proportional to 621,870.26, 931,310.56 and 354,821.16

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Solution

The fourth proportional to 621,870.26, 931,310.56 and 354,821.16 is: 531,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,870.26 : 931,310.56 = 354,821.16 : x
  2. Step 2: Convert to fraction form
    621,870.26/931,310.56 = 354,821.16/x
  3. Step 3: Cross multiply
    621,870.26x = 931,310.56 × 354,821.16
  4. Step 4: Simplify right side
    621,870.26x = 330,448,691,916.77
  5. Step 5: Solve for x
    x = 330,448,691,916.77/621,870.26
  6. Step 6: Final answer
    x = 531,378.83

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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.