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Finding the Fourth Proportional to 362,458.80, 543,688.20 and 236,487.60

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Solution

The fourth proportional to 362,458.80, 543,688.20 and 236,487.60 is: 354,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,458.80 : 543,688.20 = 236,487.60 : x
  2. Step 2: Convert to fraction form
    362,458.80/543,688.20 = 236,487.60/x
  3. Step 3: Cross multiply
    362,458.80x = 543,688.20 × 236,487.60
  4. Step 4: Simplify right side
    362,458.80x = 128,575,517,566.32
  5. Step 5: Solve for x
    x = 128,575,517,566.32/362,458.80
  6. Step 6: Final answer
    x = 354,731.40

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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.