Home / 447,076.20-668,864.70-289,612.20

Finding the Fourth Proportional to 447,076.20, 668,864.70 and 289,612.20

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Solution

The fourth proportional to 447,076.20, 668,864.70 and 289,612.20 is: 433,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,076.20 : 668,864.70 = 289,612.20 : x
  2. Step 2: Convert to fraction form
    447,076.20/668,864.70 = 289,612.20/x
  3. Step 3: Cross multiply
    447,076.20x = 668,864.70 × 289,612.20
  4. Step 4: Simplify right side
    447,076.20x = 193,711,377,269.34
  5. Step 5: Solve for x
    x = 193,711,377,269.34/447,076.20
  6. Step 6: Final answer
    x = 433,284.92

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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.