Home / 626,376.21-864,387.18-354,439.16

Finding the Fourth Proportional to 626,376.21, 864,387.18 and 354,439.16

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Solution

The fourth proportional to 626,376.21, 864,387.18 and 354,439.16 is: 489,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,376.21 : 864,387.18 = 354,439.16 : x
  2. Step 2: Convert to fraction form
    626,376.21/864,387.18 = 354,439.16/x
  3. Step 3: Cross multiply
    626,376.21x = 864,387.18 × 354,439.16
  4. Step 4: Simplify right side
    626,376.21x = 306,372,661,672.03
  5. Step 5: Solve for x
    x = 306,372,661,672.03/626,376.21
  6. Step 6: Final answer
    x = 489,119.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.