Home / 809,818.45-1,117,549.46-470,308.57

Finding the Fourth Proportional to 809,818.45, 1,117,549.46 and 470,308.57

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Solution

The fourth proportional to 809,818.45, 1,117,549.46 and 470,308.57 is: 649,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,818.45 : 1,117,549.46 = 470,308.57 : x
  2. Step 2: Convert to fraction form
    809,818.45/1,117,549.46 = 470,308.57/x
  3. Step 3: Cross multiply
    809,818.45x = 1,117,549.46 × 470,308.57
  4. Step 4: Simplify right side
    809,818.45x = 525,593,088,436.87
  5. Step 5: Solve for x
    x = 525,593,088,436.87/809,818.45
  6. Step 6: Final answer
    x = 649,025.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.