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Finding the Fourth Proportional to 406,404.64, 560,785.24 and 234,329.08

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Solution

The fourth proportional to 406,404.64, 560,785.24 and 234,329.08 is: 323,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,404.64 : 560,785.24 = 234,329.08 : x
  2. Step 2: Convert to fraction form
    406,404.64/560,785.24 = 234,329.08/x
  3. Step 3: Cross multiply
    406,404.64x = 560,785.24 × 234,329.08
  4. Step 4: Simplify right side
    406,404.64x = 131,408,289,366.78
  5. Step 5: Solve for x
    x = 131,408,289,366.78/406,404.64
  6. Step 6: Final answer
    x = 323,343.48

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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.