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Finding the Fourth Proportional to 1,169,824.50, 1,749,671.11 and 688,905.93

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Solution

The fourth proportional to 1,169,824.50, 1,749,671.11 and 688,905.93 is: 1,030,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,824.50 : 1,749,671.11 = 688,905.93 : x
  2. Step 2: Convert to fraction form
    1,169,824.50/1,749,671.11 = 688,905.93/x
  3. Step 3: Cross multiply
    1,169,824.50x = 1,749,671.11 × 688,905.93
  4. Step 4: Simplify right side
    1,169,824.50x = 1,205,358,810,651.08
  5. Step 5: Solve for x
    x = 1,205,358,810,651.08/1,169,824.50
  6. Step 6: Final answer
    x = 1,030,375.76

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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.