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Finding the Fourth Proportional to 621,366.98, 932,040.95 and 279,568.98

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Solution

The fourth proportional to 621,366.98, 932,040.95 and 279,568.98 is: 419,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,366.98 : 932,040.95 = 279,568.98 : x
  2. Step 2: Convert to fraction form
    621,366.98/932,040.95 = 279,568.98/x
  3. Step 3: Cross multiply
    621,366.98x = 932,040.95 × 279,568.98
  4. Step 4: Simplify right side
    621,366.98x = 260,569,736,311.89
  5. Step 5: Solve for x
    x = 260,569,736,311.89/621,366.98
  6. Step 6: Final answer
    x = 419,349.19

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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.