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Finding the Fourth Proportional to 566,999.57, 782,459.06 and 312,350.76

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Solution

The fourth proportional to 566,999.57, 782,459.06 and 312,350.76 is: 431,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,999.57 : 782,459.06 = 312,350.76 : x
  2. Step 2: Convert to fraction form
    566,999.57/782,459.06 = 312,350.76/x
  3. Step 3: Cross multiply
    566,999.57x = 782,459.06 × 312,350.76
  4. Step 4: Simplify right side
    566,999.57x = 244,401,680,342.83
  5. Step 5: Solve for x
    x = 244,401,680,342.83/566,999.57
  6. Step 6: Final answer
    x = 431,043.86

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1.5x scale

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.