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Finding the Fourth Proportional to 529,578.90, 794,373.87 and 209,808.59

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Solution

The fourth proportional to 529,578.90, 794,373.87 and 209,808.59 is: 314,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,578.90 : 794,373.87 = 209,808.59 : x
  2. Step 2: Convert to fraction form
    529,578.90/794,373.87 = 209,808.59/x
  3. Step 3: Cross multiply
    529,578.90x = 794,373.87 × 209,808.59
  4. Step 4: Simplify right side
    529,578.90x = 166,666,457,625.67
  5. Step 5: Solve for x
    x = 166,666,457,625.67/529,578.90
  6. Step 6: Final answer
    x = 314,715.06

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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.