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Finding the Fourth Proportional to 362,415.40, 543,623.10 and 236,444.20

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Solution

The fourth proportional to 362,415.40, 543,623.10 and 236,444.20 is: 354,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,415.40 : 543,623.10 = 236,444.20 : x
  2. Step 2: Convert to fraction form
    362,415.40/543,623.10 = 236,444.20/x
  3. Step 3: Cross multiply
    362,415.40x = 543,623.10 × 236,444.20
  4. Step 4: Simplify right side
    362,415.40x = 128,536,528,981.02
  5. Step 5: Solve for x
    x = 128,536,528,981.02/362,415.40
  6. Step 6: Final answer
    x = 354,666.30

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Double scale
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Similar ratio
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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.