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Finding the Fourth Proportional to 507,350.76, 761,061.65 and 203,744.87

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Solution

The fourth proportional to 507,350.76, 761,061.65 and 203,744.87 is: 305,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,350.76 : 761,061.65 = 203,744.87 : x
  2. Step 2: Convert to fraction form
    507,350.76/761,061.65 = 203,744.87/x
  3. Step 3: Cross multiply
    507,350.76x = 761,061.65 × 203,744.87
  4. Step 4: Simplify right side
    507,350.76x = 155,062,406,941.24
  5. Step 5: Solve for x
    x = 155,062,406,941.24/507,350.76
  6. Step 6: Final answer
    x = 305,631.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.