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Finding the Fourth Proportional to 373,358.80, 560,038.20 and 120,638.80

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Solution

The fourth proportional to 373,358.80, 560,038.20 and 120,638.80 is: 180,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,358.80 : 560,038.20 = 120,638.80 : x
  2. Step 2: Convert to fraction form
    373,358.80/560,038.20 = 120,638.80/x
  3. Step 3: Cross multiply
    373,358.80x = 560,038.20 × 120,638.80
  4. Step 4: Simplify right side
    373,358.80x = 67,562,336,402.16
  5. Step 5: Solve for x
    x = 67,562,336,402.16/373,358.80
  6. Step 6: Final answer
    x = 180,958.20

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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.