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Finding the Fourth Proportional to 406,756.96, 561,345.18 and 234,610.88

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Solution

The fourth proportional to 406,756.96, 561,345.18 and 234,610.88 is: 323,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,756.96 : 561,345.18 = 234,610.88 : x
  2. Step 2: Convert to fraction form
    406,756.96/561,345.18 = 234,610.88/x
  3. Step 3: Cross multiply
    406,756.96x = 561,345.18 × 234,610.88
  4. Step 4: Simplify right side
    406,756.96x = 131,697,686,663.56
  5. Step 5: Solve for x
    x = 131,697,686,663.56/406,756.96
  6. Step 6: Final answer
    x = 323,774.88

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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.