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Finding the Fourth Proportional to 520,083.30, 780,234.30 and 295,259.70

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Solution

The fourth proportional to 520,083.30, 780,234.30 and 295,259.70 is: 442,951.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,083.30 : 780,234.30 = 295,259.70 : x
  2. Step 2: Convert to fraction form
    520,083.30/780,234.30 = 295,259.70/x
  3. Step 3: Cross multiply
    520,083.30x = 780,234.30 × 295,259.70
  4. Step 4: Simplify right side
    520,083.30x = 230,371,745,347.71
  5. Step 5: Solve for x
    x = 230,371,745,347.71/520,083.30
  6. Step 6: Final answer
    x = 442,951.63

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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.