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Finding the Fourth Proportional to 619,537.20, 929,305.80 and 479,569.20

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Solution

The fourth proportional to 619,537.20, 929,305.80 and 479,569.20 is: 719,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,537.20 : 929,305.80 = 479,569.20 : x
  2. Step 2: Convert to fraction form
    619,537.20/929,305.80 = 479,569.20/x
  3. Step 3: Cross multiply
    619,537.20x = 929,305.80 × 479,569.20
  4. Step 4: Simplify right side
    619,537.20x = 445,666,439,061.36
  5. Step 5: Solve for x
    x = 445,666,439,061.36/619,537.20
  6. Step 6: Final answer
    x = 719,353.80

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1.5x scale

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.