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Finding the Fourth Proportional to 400,042.80, 600,064.20 and 175,510.80

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Solution

The fourth proportional to 400,042.80, 600,064.20 and 175,510.80 is: 263,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,042.80 : 600,064.20 = 175,510.80 : x
  2. Step 2: Convert to fraction form
    400,042.80/600,064.20 = 175,510.80/x
  3. Step 3: Cross multiply
    400,042.80x = 600,064.20 × 175,510.80
  4. Step 4: Simplify right side
    400,042.80x = 105,317,747,793.36
  5. Step 5: Solve for x
    x = 105,317,747,793.36/400,042.80
  6. Step 6: Final answer
    x = 263,266.20

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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.