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Finding the Fourth Proportional to 582,079.28, 803,261.76 and 327,430.40

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Solution

The fourth proportional to 582,079.28, 803,261.76 and 327,430.40 is: 451,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,079.28 : 803,261.76 = 327,430.40 : x
  2. Step 2: Convert to fraction form
    582,079.28/803,261.76 = 327,430.40/x
  3. Step 3: Cross multiply
    582,079.28x = 803,261.76 × 327,430.40
  4. Step 4: Simplify right side
    582,079.28x = 263,012,319,381.50
  5. Step 5: Solve for x
    x = 263,012,319,381.50/582,079.28
  6. Step 6: Final answer
    x = 451,849.65

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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.