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Finding the Fourth Proportional to 245,524.80, 368,287.20 and 216,000.30

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Solution

The fourth proportional to 245,524.80, 368,287.20 and 216,000.30 is: 324,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,524.80 : 368,287.20 = 216,000.30 : x
  2. Step 2: Convert to fraction form
    245,524.80/368,287.20 = 216,000.30/x
  3. Step 3: Cross multiply
    245,524.80x = 368,287.20 × 216,000.30
  4. Step 4: Simplify right side
    245,524.80x = 79,550,145,686.16
  5. Step 5: Solve for x
    x = 79,550,145,686.16/245,524.80
  6. Step 6: Final answer
    x = 324,000.45

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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.