Home / 809,145.76-1,116,583.18-464,739.40

Finding the Fourth Proportional to 809,145.76, 1,116,583.18 and 464,739.40

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Solution

The fourth proportional to 809,145.76, 1,116,583.18 and 464,739.40 is: 641,318.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,145.76 : 1,116,583.18 = 464,739.40 : x
  2. Step 2: Convert to fraction form
    809,145.76/1,116,583.18 = 464,739.40/x
  3. Step 3: Cross multiply
    809,145.76x = 1,116,583.18 × 464,739.40
  4. Step 4: Simplify right side
    809,145.76x = 518,920,197,123.29
  5. Step 5: Solve for x
    x = 518,920,197,123.29/809,145.76
  6. Step 6: Final answer
    x = 641,318.56

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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.