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Finding the Fourth Proportional to 633,510.18, 874,244.21 and 347,040.45

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Solution

The fourth proportional to 633,510.18, 874,244.21 and 347,040.45 is: 478,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,510.18 : 874,244.21 = 347,040.45 : x
  2. Step 2: Convert to fraction form
    633,510.18/874,244.21 = 347,040.45/x
  3. Step 3: Cross multiply
    633,510.18x = 874,244.21 × 347,040.45
  4. Step 4: Simplify right side
    633,510.18x = 303,398,102,313.09
  5. Step 5: Solve for x
    x = 303,398,102,313.09/633,510.18
  6. Step 6: Final answer
    x = 478,915.91

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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.