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Finding the Fourth Proportional to 335,615.60, 503,423.40 and 322,713.20

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Solution

The fourth proportional to 335,615.60, 503,423.40 and 322,713.20 is: 484,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,615.60 : 503,423.40 = 322,713.20 : x
  2. Step 2: Convert to fraction form
    335,615.60/503,423.40 = 322,713.20/x
  3. Step 3: Cross multiply
    335,615.60x = 503,423.40 × 322,713.20
  4. Step 4: Simplify right side
    335,615.60x = 162,461,376,368.88
  5. Step 5: Solve for x
    x = 162,461,376,368.88/335,615.60
  6. Step 6: Final answer
    x = 484,069.80

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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.