Home / 496,171.16-684,423.84-312,116.36

Finding the Fourth Proportional to 496,171.16, 684,423.84 and 312,116.36

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Solution

The fourth proportional to 496,171.16, 684,423.84 and 312,116.36 is: 430,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,171.16 : 684,423.84 = 312,116.36 : x
  2. Step 2: Convert to fraction form
    496,171.16/684,423.84 = 312,116.36/x
  3. Step 3: Cross multiply
    496,171.16x = 684,423.84 × 312,116.36
  4. Step 4: Simplify right side
    496,171.16x = 213,619,877,638.02
  5. Step 5: Solve for x
    x = 213,619,877,638.02/496,171.16
  6. Step 6: Final answer
    x = 430,536.67

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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.