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Finding the Fourth Proportional to 633,890.50, 874,767.20 and 343,510.13

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Solution

The fourth proportional to 633,890.50, 874,767.20 and 343,510.13 is: 474,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,890.50 : 874,767.20 = 343,510.13 : x
  2. Step 2: Convert to fraction form
    633,890.50/874,767.20 = 343,510.13/x
  3. Step 3: Cross multiply
    633,890.50x = 874,767.20 × 343,510.13
  4. Step 4: Simplify right side
    633,890.50x = 300,491,395,061.10
  5. Step 5: Solve for x
    x = 300,491,395,061.10/633,890.50
  6. Step 6: Final answer
    x = 474,043.07

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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.