Home / 665,669.20-998,503.80-192,402.40

Finding the Fourth Proportional to 665,669.20, 998,503.80 and 192,402.40

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Solution

The fourth proportional to 665,669.20, 998,503.80 and 192,402.40 is: 288,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,669.20 : 998,503.80 = 192,402.40 : x
  2. Step 2: Convert to fraction form
    665,669.20/998,503.80 = 192,402.40/x
  3. Step 3: Cross multiply
    665,669.20x = 998,503.80 × 192,402.40
  4. Step 4: Simplify right side
    665,669.20x = 192,114,527,529.12
  5. Step 5: Solve for x
    x = 192,114,527,529.12/665,669.20
  6. Step 6: Final answer
    x = 288,603.60

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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.