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Finding the Fourth Proportional to 353,551.20, 529,549.20 and 306,895.20

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Solution

The fourth proportional to 353,551.20, 529,549.20 and 306,895.20 is: 459,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,551.20 : 529,549.20 = 306,895.20 : x
  2. Step 2: Convert to fraction form
    353,551.20/529,549.20 = 306,895.20/x
  3. Step 3: Cross multiply
    353,551.20x = 529,549.20 × 306,895.20
  4. Step 4: Simplify right side
    353,551.20x = 162,516,107,643.84
  5. Step 5: Solve for x
    x = 162,516,107,643.84/353,551.20
  6. Step 6: Final answer
    x = 459,667.82

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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.