Home / 665,443.20-998,164.80-192,176.40

Finding the Fourth Proportional to 665,443.20, 998,164.80 and 192,176.40

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Solution

The fourth proportional to 665,443.20, 998,164.80 and 192,176.40 is: 288,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,443.20 : 998,164.80 = 192,176.40 : x
  2. Step 2: Convert to fraction form
    665,443.20/998,164.80 = 192,176.40/x
  3. Step 3: Cross multiply
    665,443.20x = 998,164.80 × 192,176.40
  4. Step 4: Simplify right side
    665,443.20x = 191,823,717,870.72
  5. Step 5: Solve for x
    x = 191,823,717,870.72/665,443.20
  6. Step 6: Final answer
    x = 288,264.60

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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.