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Finding the Fourth Proportional to 633,803.41, 874,641.24 and 343,409.29

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Solution

The fourth proportional to 633,803.41, 874,641.24 and 343,409.29 is: 473,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,803.41 : 874,641.24 = 343,409.29 : x
  2. Step 2: Convert to fraction form
    633,803.41/874,641.24 = 343,409.29/x
  3. Step 3: Cross multiply
    633,803.41x = 874,641.24 × 343,409.29
  4. Step 4: Simplify right side
    633,803.41x = 300,359,927,233.12
  5. Step 5: Solve for x
    x = 300,359,927,233.12/633,803.41
  6. Step 6: Final answer
    x = 473,900.78

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Double scale
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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.