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Finding the Fourth Proportional to 497,176.80, 744,015.60 and 346,711.20

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Solution

The fourth proportional to 497,176.80, 744,015.60 and 346,711.20 is: 518,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,176.80 : 744,015.60 = 346,711.20 : x
  2. Step 2: Convert to fraction form
    497,176.80/744,015.60 = 346,711.20/x
  3. Step 3: Cross multiply
    497,176.80x = 744,015.60 × 346,711.20
  4. Step 4: Simplify right side
    497,176.80x = 257,958,541,494.72
  5. Step 5: Solve for x
    x = 257,958,541,494.72/497,176.80
  6. Step 6: Final answer
    x = 518,846.70

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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.