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Finding the Fourth Proportional to 475,776.56, 656,580.66 and 260,903

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Solution

The fourth proportional to 475,776.56, 656,580.66 and 260,903 is: 360,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,776.56 : 656,580.66 = 260,903 : x
  2. Step 2: Convert to fraction form
    475,776.56/656,580.66 = 260,903/x
  3. Step 3: Cross multiply
    475,776.56x = 656,580.66 × 260,903
  4. Step 4: Simplify right side
    475,776.56x = 171,303,863,935.98
  5. Step 5: Solve for x
    x = 171,303,863,935.98/475,776.56
  6. Step 6: Final answer
    x = 360,051.08

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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.