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Finding the Fourth Proportional to 312,168.86, 430,655.62 and 183,041.76

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Solution

The fourth proportional to 312,168.86, 430,655.62 and 183,041.76 is: 252,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,168.86 : 430,655.62 = 183,041.76 : x
  2. Step 2: Convert to fraction form
    312,168.86/430,655.62 = 183,041.76/x
  3. Step 3: Cross multiply
    312,168.86x = 430,655.62 × 183,041.76
  4. Step 4: Simplify right side
    312,168.86x = 78,827,962,638.69
  5. Step 5: Solve for x
    x = 78,827,962,638.69/312,168.86
  6. Step 6: Final answer
    x = 252,517.06

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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.