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Finding the Fourth Proportional to 938,472, 1,293,658.20 and 575,222.64

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Solution

The fourth proportional to 938,472, 1,293,658.20 and 575,222.64 is: 792,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,472 : 1,293,658.20 = 575,222.64 : x
  2. Step 2: Convert to fraction form
    938,472/1,293,658.20 = 575,222.64/x
  3. Step 3: Cross multiply
    938,472x = 1,293,658.20 × 575,222.64
  4. Step 4: Simplify right side
    938,472x = 744,141,485,061.65
  5. Step 5: Solve for x
    x = 744,141,485,061.65/938,472
  6. Step 6: Final answer
    x = 792,928.81

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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.