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Finding the Fourth Proportional to 514,163.52, 770,240.88 and 354,211.20

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Solution

The fourth proportional to 514,163.52, 770,240.88 and 354,211.20 is: 530,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,163.52 : 770,240.88 = 354,211.20 : x
  2. Step 2: Convert to fraction form
    514,163.52/770,240.88 = 354,211.20/x
  3. Step 3: Cross multiply
    514,163.52x = 770,240.88 × 354,211.20
  4. Step 4: Simplify right side
    514,163.52x = 272,827,946,393.86
  5. Step 5: Solve for x
    x = 272,827,946,393.86/514,163.52
  6. Step 6: Final answer
    x = 530,624.86

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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.