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Finding the Fourth Proportional to 619,994.20, 930,077.70 and 265,005.40

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Solution

The fourth proportional to 619,994.20, 930,077.70 and 265,005.40 is: 397,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,994.20 : 930,077.70 = 265,005.40 : x
  2. Step 2: Convert to fraction form
    619,994.20/930,077.70 = 265,005.40/x
  3. Step 3: Cross multiply
    619,994.20x = 930,077.70 × 265,005.40
  4. Step 4: Simplify right side
    619,994.20x = 246,475,612,919.58
  5. Step 5: Solve for x
    x = 246,475,612,919.58/619,994.20
  6. Step 6: Final answer
    x = 397,545.03

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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.