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Finding the Fourth Proportional to 437,065.76, 603,178.54 and 265,000.21

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Solution

The fourth proportional to 437,065.76, 603,178.54 and 265,000.21 is: 365,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,065.76 : 603,178.54 = 265,000.21 : x
  2. Step 2: Convert to fraction form
    437,065.76/603,178.54 = 265,000.21/x
  3. Step 3: Cross multiply
    437,065.76x = 603,178.54 × 265,000.21
  4. Step 4: Simplify right side
    437,065.76x = 159,842,437,597.05
  5. Step 5: Solve for x
    x = 159,842,437,597.05/437,065.76
  6. Step 6: Final answer
    x = 365,717.13

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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.