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Finding the Fourth Proportional to 413,335.50, 570,383.56 and 229,585.98

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Solution

The fourth proportional to 413,335.50, 570,383.56 and 229,585.98 is: 316,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,335.50 : 570,383.56 = 229,585.98 : x
  2. Step 2: Convert to fraction form
    413,335.50/570,383.56 = 229,585.98/x
  3. Step 3: Cross multiply
    413,335.50x = 570,383.56 × 229,585.98
  4. Step 4: Simplify right side
    413,335.50x = 130,952,068,598.49
  5. Step 5: Solve for x
    x = 130,952,068,598.49/413,335.50
  6. Step 6: Final answer
    x = 316,817.86

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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.