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Finding the Fourth Proportional to 475,780.50, 656,577.09 and 263,812.50

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Solution

The fourth proportional to 475,780.50, 656,577.09 and 263,812.50 is: 364,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,780.50 : 656,577.09 = 263,812.50 : x
  2. Step 2: Convert to fraction form
    475,780.50/656,577.09 = 263,812.50/x
  3. Step 3: Cross multiply
    475,780.50x = 656,577.09 × 263,812.50
  4. Step 4: Simplify right side
    475,780.50x = 173,213,243,555.63
  5. Step 5: Solve for x
    x = 173,213,243,555.63/475,780.50
  6. Step 6: Final answer
    x = 364,061.25

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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.