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Finding the Fourth Proportional to 719,650.80, 993,176.56 and 413,826.60

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Solution

The fourth proportional to 719,650.80, 993,176.56 and 413,826.60 is: 571,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,650.80 : 993,176.56 = 413,826.60 : x
  2. Step 2: Convert to fraction form
    719,650.80/993,176.56 = 413,826.60/x
  3. Step 3: Cross multiply
    719,650.80x = 993,176.56 × 413,826.60
  4. Step 4: Simplify right side
    719,650.80x = 411,002,879,024.50
  5. Step 5: Solve for x
    x = 411,002,879,024.50/719,650.80
  6. Step 6: Final answer
    x = 571,114.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.