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Finding the Fourth Proportional to 493,057.40, 739,877.70 and 325,063.40

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Solution

The fourth proportional to 493,057.40, 739,877.70 and 325,063.40 is: 487,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,057.40 : 739,877.70 = 325,063.40 : x
  2. Step 2: Convert to fraction form
    493,057.40/739,877.70 = 325,063.40/x
  3. Step 3: Cross multiply
    493,057.40x = 739,877.70 × 325,063.40
  4. Step 4: Simplify right side
    493,057.40x = 240,507,160,746.18
  5. Step 5: Solve for x
    x = 240,507,160,746.18/493,057.40
  6. Step 6: Final answer
    x = 487,787.35

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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.