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Finding the Fourth Proportional to 496,699.16, 685,539.32 and 281,859.22

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Solution

The fourth proportional to 496,699.16, 685,539.32 and 281,859.22 is: 389,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,699.16 : 685,539.32 = 281,859.22 : x
  2. Step 2: Convert to fraction form
    496,699.16/685,539.32 = 281,859.22/x
  3. Step 3: Cross multiply
    496,699.16x = 685,539.32 × 281,859.22
  4. Step 4: Simplify right side
    496,699.16x = 193,225,578,014.53
  5. Step 5: Solve for x
    x = 193,225,578,014.53/496,699.16
  6. Step 6: Final answer
    x = 389,019.34

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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.