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Finding the Fourth Proportional to 349,615.20, 524,422.80 and 310,216.80

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Solution

The fourth proportional to 349,615.20, 524,422.80 and 310,216.80 is: 465,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,615.20 : 524,422.80 = 310,216.80 : x
  2. Step 2: Convert to fraction form
    349,615.20/524,422.80 = 310,216.80/x
  3. Step 3: Cross multiply
    349,615.20x = 524,422.80 × 310,216.80
  4. Step 4: Simplify right side
    349,615.20x = 162,684,762,863.04
  5. Step 5: Solve for x
    x = 162,684,762,863.04/349,615.20
  6. Step 6: Final answer
    x = 465,325.20

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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.