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Finding the Fourth Proportional to 625,706.48, 938,646.96 and 193,459.23

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Solution

The fourth proportional to 625,706.48, 938,646.96 and 193,459.23 is: 290,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,706.48 : 938,646.96 = 193,459.23 : x
  2. Step 2: Convert to fraction form
    625,706.48/938,646.96 = 193,459.23/x
  3. Step 3: Cross multiply
    625,706.48x = 938,646.96 × 193,459.23
  4. Step 4: Simplify right side
    625,706.48x = 181,589,914,576.66
  5. Step 5: Solve for x
    x = 181,589,914,576.66/625,706.48
  6. Step 6: Final answer
    x = 290,215.81

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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.