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Finding the Fourth Proportional to 507,533.70, 700,347.69 and 303,543.30

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Solution

The fourth proportional to 507,533.70, 700,347.69 and 303,543.30 is: 418,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,533.70 : 700,347.69 = 303,543.30 : x
  2. Step 2: Convert to fraction form
    507,533.70/700,347.69 = 303,543.30/x
  3. Step 3: Cross multiply
    507,533.70x = 700,347.69 × 303,543.30
  4. Step 4: Simplify right side
    507,533.70x = 212,585,848,969.98
  5. Step 5: Solve for x
    x = 212,585,848,969.98/507,533.70
  6. Step 6: Final answer
    x = 418,860.56

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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.