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Finding the Fourth Proportional to 633,811.13, 874,666.25 and 347,325.07

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Solution

The fourth proportional to 633,811.13, 874,666.25 and 347,325.07 is: 479,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,811.13 : 874,666.25 = 347,325.07 : x
  2. Step 2: Convert to fraction form
    633,811.13/874,666.25 = 347,325.07/x
  3. Step 3: Cross multiply
    633,811.13x = 874,666.25 × 347,325.07
  4. Step 4: Simplify right side
    633,811.13x = 303,793,510,397.93
  5. Step 5: Solve for x
    x = 303,793,510,397.93/633,811.13
  6. Step 6: Final answer
    x = 479,312.36

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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.