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Finding the Fourth Proportional to 633,565.40, 874,313.24 and 343,169.76

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Solution

The fourth proportional to 633,565.40, 874,313.24 and 343,169.76 is: 473,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,565.40 : 874,313.24 = 343,169.76 : x
  2. Step 2: Convert to fraction form
    633,565.40/874,313.24 = 343,169.76/x
  3. Step 3: Cross multiply
    633,565.40x = 874,313.24 × 343,169.76
  4. Step 4: Simplify right side
    633,565.40x = 300,037,868,228.78
  5. Step 5: Solve for x
    x = 300,037,868,228.78/633,565.40
  6. Step 6: Final answer
    x = 473,570.48

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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.