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Finding the Fourth Proportional to 566,887.48, 782,304.66 and 312,238.67

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Solution

The fourth proportional to 566,887.48, 782,304.66 and 312,238.67 is: 430,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,887.48 : 782,304.66 = 312,238.67 : x
  2. Step 2: Convert to fraction form
    566,887.48/782,304.66 = 312,238.67/x
  3. Step 3: Cross multiply
    566,887.48x = 782,304.66 × 312,238.67
  4. Step 4: Simplify right side
    566,887.48x = 244,265,762,661.68
  5. Step 5: Solve for x
    x = 244,265,762,661.68/566,887.48
  6. Step 6: Final answer
    x = 430,889.33

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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.