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Finding the Fourth Proportional to 508,713.06, 702,026.76 and 317,837.17

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Solution

The fourth proportional to 508,713.06, 702,026.76 and 317,837.17 is: 438,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,713.06 : 702,026.76 = 317,837.17 : x
  2. Step 2: Convert to fraction form
    508,713.06/702,026.76 = 317,837.17/x
  3. Step 3: Cross multiply
    508,713.06x = 702,026.76 × 317,837.17
  4. Step 4: Simplify right side
    508,713.06x = 223,130,198,662.67
  5. Step 5: Solve for x
    x = 223,130,198,662.67/508,713.06
  6. Step 6: Final answer
    x = 438,617.00

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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.