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Finding the Fourth Proportional to 529,581.06, 730,119.69 and 438,601.86

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Solution

The fourth proportional to 529,581.06, 730,119.69 and 438,601.86 is: 604,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,581.06 : 730,119.69 = 438,601.86 : x
  2. Step 2: Convert to fraction form
    529,581.06/730,119.69 = 438,601.86/x
  3. Step 3: Cross multiply
    529,581.06x = 730,119.69 × 438,601.86
  4. Step 4: Simplify right side
    529,581.06x = 320,231,854,056.62
  5. Step 5: Solve for x
    x = 320,231,854,056.62/529,581.06
  6. Step 6: Final answer
    x = 604,689.02

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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.