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Finding the Fourth Proportional to 365,417.20, 548,125.80 and 207,953.20

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Solution

The fourth proportional to 365,417.20, 548,125.80 and 207,953.20 is: 311,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,417.20 : 548,125.80 = 207,953.20 : x
  2. Step 2: Convert to fraction form
    365,417.20/548,125.80 = 207,953.20/x
  3. Step 3: Cross multiply
    365,417.20x = 548,125.80 × 207,953.20
  4. Step 4: Simplify right side
    365,417.20x = 113,984,514,112.56
  5. Step 5: Solve for x
    x = 113,984,514,112.56/365,417.20
  6. Step 6: Final answer
    x = 311,929.80

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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.