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Finding the Fourth Proportional to 366,302.80, 548,935.80 and 321,720.40

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Solution

The fourth proportional to 366,302.80, 548,935.80 and 321,720.40 is: 482,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,302.80 : 548,935.80 = 321,720.40 : x
  2. Step 2: Convert to fraction form
    366,302.80/548,935.80 = 321,720.40/x
  3. Step 3: Cross multiply
    366,302.80x = 548,935.80 × 321,720.40
  4. Step 4: Simplify right side
    366,302.80x = 176,603,845,150.32
  5. Step 5: Solve for x
    x = 176,603,845,150.32/366,302.80
  6. Step 6: Final answer
    x = 482,125.29

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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.