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Finding the Fourth Proportional to 436,845.64, 602,866.40 and 245,871.40

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Solution

The fourth proportional to 436,845.64, 602,866.40 and 245,871.40 is: 339,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,845.64 : 602,866.40 = 245,871.40 : x
  2. Step 2: Convert to fraction form
    436,845.64/602,866.40 = 245,871.40/x
  3. Step 3: Cross multiply
    436,845.64x = 602,866.40 × 245,871.40
  4. Step 4: Simplify right side
    436,845.64x = 148,227,605,780.96
  5. Step 5: Solve for x
    x = 148,227,605,780.96/436,845.64
  6. Step 6: Final answer
    x = 339,313.46

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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.