Home / 529,766.50-731,077.78-291,302.50

Finding the Fourth Proportional to 529,766.50, 731,077.78 and 291,302.50

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Solution

The fourth proportional to 529,766.50, 731,077.78 and 291,302.50 is: 401,997.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,766.50 : 731,077.78 = 291,302.50 : x
  2. Step 2: Convert to fraction form
    529,766.50/731,077.78 = 291,302.50/x
  3. Step 3: Cross multiply
    529,766.50x = 731,077.78 × 291,302.50
  4. Step 4: Simplify right side
    529,766.50x = 212,964,785,008.45
  5. Step 5: Solve for x
    x = 212,964,785,008.45/529,766.50
  6. Step 6: Final answer
    x = 401,997.46

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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.