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Finding the Fourth Proportional to 508,187.55, 761,338.70 and 363,795.32

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Solution

The fourth proportional to 508,187.55, 761,338.70 and 363,795.32 is: 545,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,187.55 : 761,338.70 = 363,795.32 : x
  2. Step 2: Convert to fraction form
    508,187.55/761,338.70 = 363,795.32/x
  3. Step 3: Cross multiply
    508,187.55x = 761,338.70 × 363,795.32
  4. Step 4: Simplify right side
    508,187.55x = 276,971,453,871.63
  5. Step 5: Solve for x
    x = 276,971,453,871.63/508,187.55
  6. Step 6: Final answer
    x = 545,018.18

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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.