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Finding the Fourth Proportional to 708,231.60, 977,359.62 and 385,941.60

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Solution

The fourth proportional to 708,231.60, 977,359.62 and 385,941.60 is: 532,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,231.60 : 977,359.62 = 385,941.60 : x
  2. Step 2: Convert to fraction form
    708,231.60/977,359.62 = 385,941.60/x
  3. Step 3: Cross multiply
    708,231.60x = 977,359.62 × 385,941.60
  4. Step 4: Simplify right side
    708,231.60x = 377,203,735,518.19
  5. Step 5: Solve for x
    x = 377,203,735,518.19/708,231.60
  6. Step 6: Final answer
    x = 532,599.41

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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.