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Finding the Fourth Proportional to 262,000.68, 392,716.67 and 172,005.63

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Solution

The fourth proportional to 262,000.68, 392,716.67 and 172,005.63 is: 257,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,000.68 : 392,716.67 = 172,005.63 : x
  2. Step 2: Convert to fraction form
    262,000.68/392,716.67 = 172,005.63/x
  3. Step 3: Cross multiply
    262,000.68x = 392,716.67 × 172,005.63
  4. Step 4: Simplify right side
    262,000.68x = 67,549,477,374.82
  5. Step 5: Solve for x
    x = 67,549,477,374.82/262,000.68
  6. Step 6: Final answer
    x = 257,821.76

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1.5x scale

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.