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Finding the Fourth Proportional to 406,530.63, 561,090.92 and 234,559.80

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Solution

The fourth proportional to 406,530.63, 561,090.92 and 234,559.80 is: 323,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,530.63 : 561,090.92 = 234,559.80 : x
  2. Step 2: Convert to fraction form
    406,530.63/561,090.92 = 234,559.80/x
  3. Step 3: Cross multiply
    406,530.63x = 561,090.92 × 234,559.80
  4. Step 4: Simplify right side
    406,530.63x = 131,609,372,804.22
  5. Step 5: Solve for x
    x = 131,609,372,804.22/406,530.63
  6. Step 6: Final answer
    x = 323,737.90

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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.