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Finding the Fourth Proportional to 768,809.32, 1,060,950.52 and 419,950.01

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Solution

The fourth proportional to 768,809.32, 1,060,950.52 and 419,950.01 is: 579,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,809.32 : 1,060,950.52 = 419,950.01 : x
  2. Step 2: Convert to fraction form
    768,809.32/1,060,950.52 = 419,950.01/x
  3. Step 3: Cross multiply
    768,809.32x = 1,060,950.52 × 419,950.01
  4. Step 4: Simplify right side
    768,809.32x = 445,546,181,483.51
  5. Step 5: Solve for x
    x = 445,546,181,483.51/768,809.32
  6. Step 6: Final answer
    x = 579,527.55

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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.