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Finding the Fourth Proportional to 362,899.20, 543,692.70 and 310,411.20

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Solution

The fourth proportional to 362,899.20, 543,692.70 and 310,411.20 is: 465,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,899.20 : 543,692.70 = 310,411.20 : x
  2. Step 2: Convert to fraction form
    362,899.20/543,692.70 = 310,411.20/x
  3. Step 3: Cross multiply
    362,899.20x = 543,692.70 × 310,411.20
  4. Step 4: Simplify right side
    362,899.20x = 168,768,303,438.24
  5. Step 5: Solve for x
    x = 168,768,303,438.24/362,899.20
  6. Step 6: Final answer
    x = 465,055.60

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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.