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Finding the Fourth Proportional to 881,295.50, 1,216,237 and 499,445.30

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Solution

The fourth proportional to 881,295.50, 1,216,237 and 499,445.30 is: 689,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,295.50 : 1,216,237 = 499,445.30 : x
  2. Step 2: Convert to fraction form
    881,295.50/1,216,237 = 499,445.30/x
  3. Step 3: Cross multiply
    881,295.50x = 1,216,237 × 499,445.30
  4. Step 4: Simplify right side
    881,295.50x = 607,443,853,336.10
  5. Step 5: Solve for x
    x = 607,443,853,336.10/881,295.50
  6. Step 6: Final answer
    x = 689,262.40

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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.