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Finding the Fourth Proportional to 511,783.18, 766,646.68 and 254,841.67

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Solution

The fourth proportional to 511,783.18, 766,646.68 and 254,841.67 is: 381,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,783.18 : 766,646.68 = 254,841.67 : x
  2. Step 2: Convert to fraction form
    511,783.18/766,646.68 = 254,841.67/x
  3. Step 3: Cross multiply
    511,783.18x = 766,646.68 × 254,841.67
  4. Step 4: Simplify right side
    511,783.18x = 195,373,515,123.71
  5. Step 5: Solve for x
    x = 195,373,515,123.71/511,783.18
  6. Step 6: Final answer
    x = 381,750.56

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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.