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Finding the Fourth Proportional to 433,681.61, 650,148.26 and 208,732.59

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Solution

The fourth proportional to 433,681.61, 650,148.26 and 208,732.59 is: 312,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,681.61 : 650,148.26 = 208,732.59 : x
  2. Step 2: Convert to fraction form
    433,681.61/650,148.26 = 208,732.59/x
  3. Step 3: Cross multiply
    433,681.61x = 650,148.26 × 208,732.59
  4. Step 4: Simplify right side
    433,681.61x = 135,707,129,150.13
  5. Step 5: Solve for x
    x = 135,707,129,150.13/433,681.61
  6. Step 6: Final answer
    x = 312,918.80

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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.