Home / 579,098.48-799,203.78-321,056.40

Finding the Fourth Proportional to 579,098.48, 799,203.78 and 321,056.40

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Solution

The fourth proportional to 579,098.48, 799,203.78 and 321,056.40 is: 443,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,098.48 : 799,203.78 = 321,056.40 : x
  2. Step 2: Convert to fraction form
    579,098.48/799,203.78 = 321,056.40/x
  3. Step 3: Cross multiply
    579,098.48x = 799,203.78 × 321,056.40
  4. Step 4: Simplify right side
    579,098.48x = 256,589,482,871.89
  5. Step 5: Solve for x
    x = 256,589,482,871.89/579,098.48
  6. Step 6: Final answer
    x = 443,084.37

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1.5x scale

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.