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Finding the Fourth Proportional to 865,777.96, 1,194,771.66 and 483,804.78

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Solution

The fourth proportional to 865,777.96, 1,194,771.66 and 483,804.78 is: 667,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,777.96 : 1,194,771.66 = 483,804.78 : x
  2. Step 2: Convert to fraction form
    865,777.96/1,194,771.66 = 483,804.78/x
  3. Step 3: Cross multiply
    865,777.96x = 1,194,771.66 × 483,804.78
  4. Step 4: Simplify right side
    865,777.96x = 578,036,240,116.54
  5. Step 5: Solve for x
    x = 578,036,240,116.54/865,777.96
  6. Step 6: Final answer
    x = 667,649.52

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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.