Home / 809,251.20-1,215,259.20-530,006.40

Finding the Fourth Proportional to 809,251.20, 1,215,259.20 and 530,006.40

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Solution

The fourth proportional to 809,251.20, 1,215,259.20 and 530,006.40 is: 795,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,251.20 : 1,215,259.20 = 530,006.40 : x
  2. Step 2: Convert to fraction form
    809,251.20/1,215,259.20 = 530,006.40/x
  3. Step 3: Cross multiply
    809,251.20x = 1,215,259.20 × 530,006.40
  4. Step 4: Simplify right side
    809,251.20x = 644,095,153,658.88
  5. Step 5: Solve for x
    x = 644,095,153,658.88/809,251.20
  6. Step 6: Final answer
    x = 795,914.98

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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.