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Finding the Fourth Proportional to 496,881.76, 685,662.24 and 282,026.20

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Solution

The fourth proportional to 496,881.76, 685,662.24 and 282,026.20 is: 389,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,881.76 : 685,662.24 = 282,026.20 : x
  2. Step 2: Convert to fraction form
    496,881.76/685,662.24 = 282,026.20/x
  3. Step 3: Cross multiply
    496,881.76x = 685,662.24 × 282,026.20
  4. Step 4: Simplify right side
    496,881.76x = 193,374,716,030.69
  5. Step 5: Solve for x
    x = 193,374,716,030.69/496,881.76
  6. Step 6: Final answer
    x = 389,176.52

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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.