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Finding the Fourth Proportional to 577,814.60, 866,376.30 and 297,878.60

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Solution

The fourth proportional to 577,814.60, 866,376.30 and 297,878.60 is: 446,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,814.60 : 866,376.30 = 297,878.60 : x
  2. Step 2: Convert to fraction form
    577,814.60/866,376.30 = 297,878.60/x
  3. Step 3: Cross multiply
    577,814.60x = 866,376.30 × 297,878.60
  4. Step 4: Simplify right side
    577,814.60x = 258,074,959,317.18
  5. Step 5: Solve for x
    x = 258,074,959,317.18/577,814.60
  6. Step 6: Final answer
    x = 446,639.73

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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.