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Finding the Fourth Proportional to 362,316.28, 543,188.56 and 228,915.40

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Solution

The fourth proportional to 362,316.28, 543,188.56 and 228,915.40 is: 343,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,316.28 : 543,188.56 = 228,915.40 : x
  2. Step 2: Convert to fraction form
    362,316.28/543,188.56 = 228,915.40/x
  3. Step 3: Cross multiply
    362,316.28x = 543,188.56 × 228,915.40
  4. Step 4: Simplify right side
    362,316.28x = 124,344,226,487.82
  5. Step 5: Solve for x
    x = 124,344,226,487.82/362,316.28
  6. Step 6: Final answer
    x = 343,192.49

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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.