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Finding the Fourth Proportional to 349,969.20, 524,953.80 and 216,416.40

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Solution

The fourth proportional to 349,969.20, 524,953.80 and 216,416.40 is: 324,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,969.20 : 524,953.80 = 216,416.40 : x
  2. Step 2: Convert to fraction form
    349,969.20/524,953.80 = 216,416.40/x
  3. Step 3: Cross multiply
    349,969.20x = 524,953.80 × 216,416.40
  4. Step 4: Simplify right side
    349,969.20x = 113,608,611,562.32
  5. Step 5: Solve for x
    x = 113,608,611,562.32/349,969.20
  6. Step 6: Final answer
    x = 324,624.60

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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.