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Finding the Fourth Proportional to 735,807.40, 1,103,711.10 and 511,858.60

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Solution

The fourth proportional to 735,807.40, 1,103,711.10 and 511,858.60 is: 767,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,807.40 : 1,103,711.10 = 511,858.60 : x
  2. Step 2: Convert to fraction form
    735,807.40/1,103,711.10 = 511,858.60/x
  3. Step 3: Cross multiply
    735,807.40x = 1,103,711.10 × 511,858.60
  4. Step 4: Simplify right side
    735,807.40x = 564,944,018,450.46
  5. Step 5: Solve for x
    x = 564,944,018,450.46/735,807.40
  6. Step 6: Final answer
    x = 767,787.90

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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.