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Finding the Fourth Proportional to 343,343.40, 515,015.10 and 337,511.40

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Solution

The fourth proportional to 343,343.40, 515,015.10 and 337,511.40 is: 506,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,343.40 : 515,015.10 = 337,511.40 : x
  2. Step 2: Convert to fraction form
    343,343.40/515,015.10 = 337,511.40/x
  3. Step 3: Cross multiply
    343,343.40x = 515,015.10 × 337,511.40
  4. Step 4: Simplify right side
    343,343.40x = 173,823,467,422.14
  5. Step 5: Solve for x
    x = 173,823,467,422.14/343,343.40
  6. Step 6: Final answer
    x = 506,267.10

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1.5x scale

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.