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Finding the Fourth Proportional to 566,716.32, 782,040.44 and 312,019.92

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Solution

The fourth proportional to 566,716.32, 782,040.44 and 312,019.92 is: 430,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,716.32 : 782,040.44 = 312,019.92 : x
  2. Step 2: Convert to fraction form
    566,716.32/782,040.44 = 312,019.92/x
  3. Step 3: Cross multiply
    566,716.32x = 782,040.44 × 312,019.92
  4. Step 4: Simplify right side
    566,716.32x = 244,012,195,525.57
  5. Step 5: Solve for x
    x = 244,012,195,525.57/566,716.32
  6. Step 6: Final answer
    x = 430,572.03

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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.