Home / 456,345.20-684,372.21-156,753.53

Finding the Fourth Proportional to 456,345.20, 684,372.21 and 156,753.53

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Solution

The fourth proportional to 456,345.20, 684,372.21 and 156,753.53 is: 235,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,345.20 : 684,372.21 = 156,753.53 : x
  2. Step 2: Convert to fraction form
    456,345.20/684,372.21 = 156,753.53/x
  3. Step 3: Cross multiply
    456,345.20x = 684,372.21 × 156,753.53
  4. Step 4: Simplify right side
    456,345.20x = 107,277,756,329.54
  5. Step 5: Solve for x
    x = 107,277,756,329.54/456,345.20
  6. Step 6: Final answer
    x = 235,080.28

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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.