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Finding the Fourth Proportional to 260,436.60, 390,810.22 and 116,331.12

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Solution

The fourth proportional to 260,436.60, 390,810.22 and 116,331.12 is: 174,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,436.60 : 390,810.22 = 116,331.12 : x
  2. Step 2: Convert to fraction form
    260,436.60/390,810.22 = 116,331.12/x
  3. Step 3: Cross multiply
    260,436.60x = 390,810.22 × 116,331.12
  4. Step 4: Simplify right side
    260,436.60x = 45,463,390,309.22
  5. Step 5: Solve for x
    x = 45,463,390,309.22/260,436.60
  6. Step 6: Final answer
    x = 174,566.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.