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Finding the Fourth Proportional to 517,423.55, 776,138.76 and 180,462.94

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Solution

The fourth proportional to 517,423.55, 776,138.76 and 180,462.94 is: 270,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,423.55 : 776,138.76 = 180,462.94 : x
  2. Step 2: Convert to fraction form
    517,423.55/776,138.76 = 180,462.94/x
  3. Step 3: Cross multiply
    517,423.55x = 776,138.76 × 180,462.94
  4. Step 4: Simplify right side
    517,423.55x = 140,064,280,537.21
  5. Step 5: Solve for x
    x = 140,064,280,537.21/517,423.55
  6. Step 6: Final answer
    x = 270,695.61

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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.