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Finding the Fourth Proportional to 508,998.35, 702,341.53 and 291,172.39

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Solution

The fourth proportional to 508,998.35, 702,341.53 and 291,172.39 is: 401,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,998.35 : 702,341.53 = 291,172.39 : x
  2. Step 2: Convert to fraction form
    508,998.35/702,341.53 = 291,172.39/x
  3. Step 3: Cross multiply
    508,998.35x = 702,341.53 × 291,172.39
  4. Step 4: Simplify right side
    508,998.35x = 204,502,461,886.36
  5. Step 5: Solve for x
    x = 204,502,461,886.36/508,998.35
  6. Step 6: Final answer
    x = 401,774.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.