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Finding the Fourth Proportional to 768,150.68, 1,059,889.66 and 441,400.57

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Solution

The fourth proportional to 768,150.68, 1,059,889.66 and 441,400.57 is: 609,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,150.68 : 1,059,889.66 = 441,400.57 : x
  2. Step 2: Convert to fraction form
    768,150.68/1,059,889.66 = 441,400.57/x
  3. Step 3: Cross multiply
    768,150.68x = 1,059,889.66 × 441,400.57
  4. Step 4: Simplify right side
    768,150.68x = 467,835,900,061.11
  5. Step 5: Solve for x
    x = 467,835,900,061.11/768,150.68
  6. Step 6: Final answer
    x = 609,041.84

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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.