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Finding the Fourth Proportional to 406,368.90, 609,555.38 and 166,613.76

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Solution

The fourth proportional to 406,368.90, 609,555.38 and 166,613.76 is: 249,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,368.90 : 609,555.38 = 166,613.76 : x
  2. Step 2: Convert to fraction form
    406,368.90/609,555.38 = 166,613.76/x
  3. Step 3: Cross multiply
    406,368.90x = 609,555.38 × 166,613.76
  4. Step 4: Simplify right side
    406,368.90x = 101,560,312,956.96
  5. Step 5: Solve for x
    x = 101,560,312,956.96/406,368.90
  6. Step 6: Final answer
    x = 249,921.47

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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.