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Finding the Fourth Proportional to 577,759.67, 866,464.54 and 156,980.87

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Solution

The fourth proportional to 577,759.67, 866,464.54 and 156,980.87 is: 235,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,759.67 : 866,464.54 = 156,980.87 : x
  2. Step 2: Convert to fraction form
    577,759.67/866,464.54 = 156,980.87/x
  3. Step 3: Cross multiply
    577,759.67x = 866,464.54 × 156,980.87
  4. Step 4: Simplify right side
    577,759.67x = 136,018,357,313.35
  5. Step 5: Solve for x
    x = 136,018,357,313.35/577,759.67
  6. Step 6: Final answer
    x = 235,423.77

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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.