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Finding the Fourth Proportional to 245,589.40, 368,384.10 and 216,064.90

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Solution

The fourth proportional to 245,589.40, 368,384.10 and 216,064.90 is: 324,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,589.40 : 368,384.10 = 216,064.90 : x
  2. Step 2: Convert to fraction form
    245,589.40/368,384.10 = 216,064.90/x
  3. Step 3: Cross multiply
    245,589.40x = 368,384.10 × 216,064.90
  4. Step 4: Simplify right side
    245,589.40x = 79,594,873,728.09
  5. Step 5: Solve for x
    x = 79,594,873,728.09/245,589.40
  6. Step 6: Final answer
    x = 324,097.35

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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.