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Finding the Fourth Proportional to 768,027.42, 1,059,876.06 and 445,926.06

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Solution

The fourth proportional to 768,027.42, 1,059,876.06 and 445,926.06 is: 615,376.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,027.42 : 1,059,876.06 = 445,926.06 : x
  2. Step 2: Convert to fraction form
    768,027.42/1,059,876.06 = 445,926.06/x
  3. Step 3: Cross multiply
    768,027.42x = 1,059,876.06 × 445,926.06
  4. Step 4: Simplify right side
    768,027.42x = 472,626,355,524.12
  5. Step 5: Solve for x
    x = 472,626,355,524.12/768,027.42
  6. Step 6: Final answer
    x = 615,376.93

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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.