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Finding the Fourth Proportional to 438,071.47, 604,812.29 and 335,900.65

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Solution

The fourth proportional to 438,071.47, 604,812.29 and 335,900.65 is: 463,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,071.47 : 604,812.29 = 335,900.65 : x
  2. Step 2: Convert to fraction form
    438,071.47/604,812.29 = 335,900.65/x
  3. Step 3: Cross multiply
    438,071.47x = 604,812.29 × 335,900.65
  4. Step 4: Simplify right side
    438,071.47x = 203,156,841,338.99
  5. Step 5: Solve for x
    x = 203,156,841,338.99/438,071.47
  6. Step 6: Final answer
    x = 463,752.73

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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.