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Finding the Fourth Proportional to 362,417.80, 543,626.70 and 212,729.80

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Solution

The fourth proportional to 362,417.80, 543,626.70 and 212,729.80 is: 319,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,417.80 : 543,626.70 = 212,729.80 : x
  2. Step 2: Convert to fraction form
    362,417.80/543,626.70 = 212,729.80/x
  3. Step 3: Cross multiply
    362,417.80x = 543,626.70 × 212,729.80
  4. Step 4: Simplify right side
    362,417.80x = 115,645,599,165.66
  5. Step 5: Solve for x
    x = 115,645,599,165.66/362,417.80
  6. Step 6: Final answer
    x = 319,094.70

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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.