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Finding the Fourth Proportional to 633,620.16, 874,396.50 and 343,232.40

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Solution

The fourth proportional to 633,620.16, 874,396.50 and 343,232.40 is: 473,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,620.16 : 874,396.50 = 343,232.40 : x
  2. Step 2: Convert to fraction form
    633,620.16/874,396.50 = 343,232.40/x
  3. Step 3: Cross multiply
    633,620.16x = 874,396.50 × 343,232.40
  4. Step 4: Simplify right side
    633,620.16x = 300,121,209,246.60
  5. Step 5: Solve for x
    x = 300,121,209,246.60/633,620.16
  6. Step 6: Final answer
    x = 473,661.08

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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.