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Finding the Fourth Proportional to 661,567.96, 992,679.90 and 262,199.80

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Solution

The fourth proportional to 661,567.96, 992,679.90 and 262,199.80 is: 393,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,567.96 : 992,679.90 = 262,199.80 : x
  2. Step 2: Convert to fraction form
    661,567.96/992,679.90 = 262,199.80/x
  3. Step 3: Cross multiply
    661,567.96x = 992,679.90 × 262,199.80
  4. Step 4: Simplify right side
    661,567.96x = 260,280,471,244.02
  5. Step 5: Solve for x
    x = 260,280,471,244.02/661,567.96
  6. Step 6: Final answer
    x = 393,429.68

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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.