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Finding the Fourth Proportional to 528,601.33, 729,469.56 and 299,154.45

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Solution

The fourth proportional to 528,601.33, 729,469.56 and 299,154.45 is: 412,832.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,601.33 : 729,469.56 = 299,154.45 : x
  2. Step 2: Convert to fraction form
    528,601.33/729,469.56 = 299,154.45/x
  3. Step 3: Cross multiply
    528,601.33x = 729,469.56 × 299,154.45
  4. Step 4: Simplify right side
    528,601.33x = 218,224,065,013.54
  5. Step 5: Solve for x
    x = 218,224,065,013.54/528,601.33
  6. Step 6: Final answer
    x = 412,832.99

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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.