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Finding the Fourth Proportional to 440,555.20, 607,990.20 and 249,605.80

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Solution

The fourth proportional to 440,555.20, 607,990.20 and 249,605.80 is: 344,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,555.20 : 607,990.20 = 249,605.80 : x
  2. Step 2: Convert to fraction form
    440,555.20/607,990.20 = 249,605.80/x
  3. Step 3: Cross multiply
    440,555.20x = 607,990.20 × 249,605.80
  4. Step 4: Simplify right side
    440,555.20x = 151,757,877,223.21
  5. Step 5: Solve for x
    x = 151,757,877,223.21/440,555.20
  6. Step 6: Final answer
    x = 344,469.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.