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Finding the Fourth Proportional to 865,777.71, 1,194,771.31 and 483,804.52

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Solution

The fourth proportional to 865,777.71, 1,194,771.31 and 483,804.52 is: 667,649.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,777.71 : 1,194,771.31 = 483,804.52 : x
  2. Step 2: Convert to fraction form
    865,777.71/1,194,771.31 = 483,804.52/x
  3. Step 3: Cross multiply
    865,777.71x = 1,194,771.31 × 483,804.52
  4. Step 4: Simplify right side
    865,777.71x = 578,035,760,144.32
  5. Step 5: Solve for x
    x = 578,035,760,144.32/865,777.71
  6. Step 6: Final answer
    x = 667,649.16

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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.