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Finding the Fourth Proportional to 496,153.22, 684,689.76 and 269,798.72

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Solution

The fourth proportional to 496,153.22, 684,689.76 and 269,798.72 is: 372,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,153.22 : 684,689.76 = 269,798.72 : x
  2. Step 2: Convert to fraction form
    496,153.22/684,689.76 = 269,798.72/x
  3. Step 3: Cross multiply
    496,153.22x = 684,689.76 × 269,798.72
  4. Step 4: Simplify right side
    496,153.22x = 184,728,417,421.66
  5. Step 5: Solve for x
    x = 184,728,417,421.66/496,153.22
  6. Step 6: Final answer
    x = 372,321.31

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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.