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Finding the Fourth Proportional to 343,818.72, 515,499.36 and 175,400.16

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Solution

The fourth proportional to 343,818.72, 515,499.36 and 175,400.16 is: 262,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,818.72 : 515,499.36 = 175,400.16 : x
  2. Step 2: Convert to fraction form
    343,818.72/515,499.36 = 175,400.16/x
  3. Step 3: Cross multiply
    343,818.72x = 515,499.36 × 175,400.16
  4. Step 4: Simplify right side
    343,818.72x = 90,418,670,223.90
  5. Step 5: Solve for x
    x = 90,418,670,223.90/343,818.72
  6. Step 6: Final answer
    x = 262,983.56

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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.