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Finding the Fourth Proportional to 566,666.37, 782,016.80 and 312,026.67

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Solution

The fourth proportional to 566,666.37, 782,016.80 and 312,026.67 is: 430,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,666.37 : 782,016.80 = 312,026.67 : x
  2. Step 2: Convert to fraction form
    566,666.37/782,016.80 = 312,026.67/x
  3. Step 3: Cross multiply
    566,666.37x = 782,016.80 × 312,026.67
  4. Step 4: Simplify right side
    566,666.37x = 244,010,096,427.92
  5. Step 5: Solve for x
    x = 244,010,096,427.92/566,666.37
  6. Step 6: Final answer
    x = 430,606.28

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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.